Search Results

Standard

Sandwich Constructions and Core Materials: General Test Methods

2023-04-21

CURRENT

AMSSTD401

This standard covers the general requirements and methods for testing sandwich core materials and for testing sandwich construction of the types used primarily in aircraft structures. This standard does not include test methods applicable only to a specific product; such test methods are included in the detailed specifications for the product.

Standard

Resin System, Epoxy, Carbon Microballoon Filled, 135 °C (275 °F) Cure

2022-12-29

CURRENT

AMS3699A

This specification covers a two-part epoxy resin system in the form of a bisphenol "A" epoxy resin filled with fumed silica and carbon microspheres and a separate curing agent.

Standard

Sandwich Structures, Glass Fabric-Resin Low Pressure Molded, Heat Resistant

2022-12-29

CURRENT

AMS3710C

This specification covers a resin-impregnated glass fabric honeycomb core in the form of flat or contoured sandwich structures.

Standard

Cloth, Aramid Intermediate Modulus

2022-10-04

CURRENT

AMS3909B

This specification and its supplementary detail specifications cover an intermediate modulus aramid yarn in the form of cloth.

Standard

Epoxy Resin Matrix, Thermosetting Moderate Temperature Resistant, Unfilled

2022-10-04

CURRENT

AMS3729A

This specification covers a heat-reactive, thermosetting, epoxy resin matrix in the form of a semi-solid. The resin matrix thermally cures to an epoxy polymer.

Standard

Epoxy Resin, Cycloaliphatic Liquid

2022-10-04

CURRENT

AMS3705A

This specification covers an alicyclic diepoxy carboxylate prepolymer in the form of a low-viscosity liquid.

Standard

Epoxy Cresol Novolac Resin Low Molecular Weight

2022-10-04

CURRENT

AMS3728A

This specification covers a prepolymer in the form of an epoxy cresol novolac (ECN) resin.

Standard

Cloth, Aramid Basket and Plain Weave

2022-10-04

CURRENT

AMS3907A

This specification covers aramid fibers in the form of woven cloth.

Standard

Filaments, Boron Tungsten Substrate, Continuous

2022-10-04

CURRENT

AMS3865C

This specification covers continuous filaments consisting of boron deposited on a tungsten substrate by the hydrogen reduction of boron trichloride.

Standard

Cloth, Aramid 2.0 oz per sq yd (68 g/m2), 230 Pounds Force per Inch (40279 N/m) (Warp) and 220 Pounds Force per Inch (38528 N/m) (Filling)

2022-10-04

CURRENT

AMS3909/3A

This specification covers one weight and one strength of intermediate modulus aramid cloth.

Standard

Cloth, Aramid, 2.25 oz per sq yd (76.3 g/m2), 250 Pounds Force per Inch (43782 N/m)

2022-10-04

CURRENT

AMS3909/2A

This specification covers one weight and one strength of intermediate modulus aramid cloth.

Standard

Cloth, Aramid 3.0 oz per sq yd (102 g/m2), 350 Pounds Force per Inch (61294 N/m)

2022-10-04

CURRENT

AMS3909/1A

This specification covers one weight and one strength of intermediate modulus aramid cloth.

Standard

Acceptance Criteria Adhesive-Bonded Metal-Faced Sandwich Structures

2022-08-10

CURRENT

AMS3920A

This specification establishes the acceptance criteria and inspection requirements for adhesive-bonded sandwich structures including the metal-to-metal bonding found in these structures, but usage is not limited to such applications and each application should be considered individually.

Standard

Adhesive, Foaming, Honeycomb, Core Splice, Structural −54 to +177 °C (−65 to +350 °F)

2022-08-10

CURRENT

AMS3689B

This specification covers a foaming-type, heat-curing, resin-base adhesive in the form of paste or sheet.

Standard

Adhesive, Foaming, Honeycomb Core Splice, Structural −55 to +82 °C (−65 to +180 °F)

2022-08-10

CURRENT

AMS3688B

This specification covers a foaming-type, heat-curing, resin-base adhesive in the form of paste or sheet.

Standard

Core Material, Plastic Honeycomb, Nylon Paper Base for Aircraft Structural Applications

2022-08-10

CURRENT

AMSC81986

This specification covers the requirements for nonperforated nylon paper base plastic honeycomb core material for aircraft structural applications, including exterior parts such as radio and radar antenna housings.

Standard

Core Material, Aluminum, for Sandwich Construction

2022-08-10

CURRENT

AMSC7438A

This specification covers treated aluminum core material for structural sandwich construction.

Standard

Automated Manufacture of Continuous Multi-Ply Carbon Fiber/Epoxy Resin Impregnated Broadgoods

2022-06-05

CURRENT

ARP1674A

This document describes a manufacturing method for processing unidirectional carbon fiber/epoxy resin impregnated sheet and tape into multi-ply broadgoods and tape produced on an automated cross-plying machine. Broadgoods or tape of two or more ply configurations may be processed, where ply orientations of 0°, 45°, 90°, and 135° (as examples) may be automatically layed in a programmed sequence. In all configurations, the 0° ply direction is parallel to the length of the broadgoods roll or sheet, or tape.

Standard

Quality Inspection Procedure, Composites Tracer Fluoroscopy and Radiography

2022-06-05

CURRENT

ARP1611A

This document describes an inspection procedure for detecting, by use of a radiographic opaque tracer and fluoroscopy or radiography methods, flaws which have been produced as the result of cutting, machining, or drilling operations in composite or laminate structures.

Standard

Interleaf Carrier Material, Composite Tape Differentially Coated Paper, Unperforated 0.0035 inch (0.081 mm)

2022-04-13

CURRENT

AMS3898/6A

This specification covers a paper, coated on both sides and with different release characteristics on each side (i.e., differentially coated), supplied in the form of rolls of sheeting or reels of unperforated tape of the width specified.