The Strap,retaining, cataloged under National Stock Number 5340-01-047-8303, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-047-8303 |
| Primary Part Number | 639AS953 |
| Item Name | Strap,retaining |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Mounting Hole Size | 0.143 INCHES MINIMUM AND 0.148 INCHES MAXIMUM IN |
| Distance Between Mounting Hole Centers | 2.065 INCHES NOMINAL IN |
| Mounting Pad | NOT INCLUDED |
| Style Designator | TAPERED ARCH |
| Material Document and Classification | MIL-I-23053/5 CL 1 MIL SPEC SINGLE MATERIAL RESPONSE CUSHIONING |
| Material Thickness | 0.0064 INCHES MINIMUM AND 0.0076 INCHES MAXIMUM IN |
| Cushion | INCLUDED |
| Distance Between Base and Inside of Arch | 0.030 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE |
| Material | COPPER ALLOY 260 LOCATION NOT OTHERWISE SPECIFIED |
| Material | PLASTIC CROSS-LINKED POLYOLEFIN CUSHIONING |
| Inside Diameter/arch Length | 1.650 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 639AS953 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| 588.10-200016-000 | Diehl Defence Gmbh & Co. Kg (DEU) |
NSN 5340-01-047-8303 is a Strap,retaining, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-047-8303 has 2 manufacturer part numbers on file: 639AS953 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 588.10-200016-000 (Diehl Defence Gmbh & Co. Kg).
Key specifications for 639AS953: Mounting Hole Size: 0.143 INCHES MINIMUM AND 0.148 INCHES MAXIMUM IN; Distance Between Mounting Hole Centers: 2.065 INCHES NOMINAL IN; Mounting Pad: NOT INCLUDED; Style Designator: TAPERED ARCH. 12 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.