The Strap,retaining, cataloged under National Stock Number 5340-01-208-8691, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Atk Launch Systems Llc Dba Atk Launch Systems-Promontory Div Propulsion Systems - Promontory. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-208-8691 |
| Primary Part Number | 53270-04 |
| Item Name | Strap,retaining |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Atk Launch Systems Llc Dba Atk Launch Systems-Promontory Div Propulsion Systems - Promontory |
| Status | ACTIVE |
| Mounting Hole Size | 0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN |
| Distance Between Mounting Hole Centers | 1.515 INCHES MINIMUM AND 1.545 INCHES MAXIMUM IN |
| Mounting Pad | NOT INCLUDED |
| Style Designator | CURVED ARCH |
| Material Thickness | 0.028 INCHES MINIMUM AND 0.033 INCHES MAXIMUM IN |
| Cushion | INCLUDED |
| Distance Between Base and Inside of Arch | 0.920 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE |
| Material | STEEL COMP 301 LOCATION NOT OTHERWISE SPECIFIED |
| Material | RUBBER SYNTHETIC CUSHIONING |
| Inside Diameter/arch Length | 0.250 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 |
|---|---|
| 53270-04 | Atk Launch Systems Llc Dba Atk Launch Systems-Promontory Div Propulsion Systems - Promontory (USA) |
| Reference | Meaning |
|---|---|
| TA09105CTR08NG | 3/2 Design control — primary reference U.S. Government activity |
NSN 5340-01-208-8691 is a Strap,retaining, manufactured by Atk Launch Systems Llc Dba Atk Launch Systems-Promontory Div Propulsion Systems - Promontory, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-208-8691 has 1 manufacturer part number on file: 53270-04 (Atk Launch Systems Llc Dba Atk Launch Systems-Promontory Div Propulsion Systems - Promontory).
2 possible matches (shared part number, not a government interchangeability claim): 3040-01-248-3727, 4510-01-262-3289. Verify interchangeability with system specifications before substitution.
Key specifications for 53270-04: Mounting Hole Size: 0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN; Distance Between Mounting Hole Centers: 1.515 INCHES MINIMUM AND 1.545 INCHES MAXIMUM IN; Mounting Pad: NOT INCLUDED; Style Designator: CURVED ARCH. 11 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.