The Strap,retaining, cataloged under National Stock Number 5340-01-253-5478, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-253-5478 |
| Item Name | Strap,retaining |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| Mounting Hole Size | 0.204 INCHES NOMINAL IN |
| Distance Between Mounting Hole Centers | 3.149 INCHES MINIMUM AND 3.179 INCHES MAXIMUM IN |
| Mounting Pad | NOT INCLUDED |
| Style Designator | SADDLE ARCH |
| Material Thickness | 0.051 INCHES NOMINAL IN |
| Cushion | NOT INCLUDED |
| Distance Between Base and Inside of Arch | 2.551 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE |
| Material | STEEL LOCATION NOT OTHERWISE SPECIFIED |
| Inside Diameter/arch Length | 2.485 INCHES MINIMUM AND 2.515 INCHES MAXIMUM 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 |
| Reference | Meaning |
|---|---|
| 1398SS40 | 5/2 Secondary reference U.S. Government activity |
| TA01C30H40 | 3/2 Design control — primary reference U.S. Government activity |
| TA1C30H40 | 5/9 Secondary reference U.S. Government activity |
| ST9M437H40 | 5/9 Secondary reference The Boeing Company Div Defense |
NSN 5340-01-253-5478 is a Strap,retaining, classified under FSC 5340, Hardware, Commercial. Status: active.
Key specifications for 5340-01-253-5478: Mounting Hole Size: 0.204 INCHES NOMINAL IN; Distance Between Mounting Hole Centers: 3.149 INCHES MINIMUM AND 3.179 INCHES MAXIMUM IN; Mounting Pad: NOT INCLUDED; Style Designator: SADDLE ARCH. 10 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.