The Screw,externally Relieved Body, cataloged under National Stock Number 5305-01-081-9455, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Bae Systems (operations) Limited. Government technical data includes 18 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.
| Parameter | Value |
|---|---|
| NSN | 5305-01-081-9455 |
| Primary Part Number | 229-022739 |
| Item Name | Screw,externally Relieved Body |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Bae Systems (operations) Limited |
| Status | ACTIVE |
| Head Height | 0.075 INCHES NOMINAL IN |
| Fastener Length | 0.230 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-C-13924 CLASS 4 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.115 INCHES NOMINAL IN |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| First Diameter From Head | 0.075 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.112 INCHES IN |
| Head Style | PAN |
| Thread Direction | RIGHT-HAND |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.115 INCHES NOMINAL IN |
| Externally Relieved Body Diameter Quantity | 1 |
| Surface Treatment | OXIDE OVERALL |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 40 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.212 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 229-022739 PRIMARY | Bae Systems (operations) Limited (GBR) |
| 229-007572 | Bae Systems (operations) Limited (GBR) |
NSN 5305-01-081-9455 is a Screw,externally Relieved Body, manufactured by Bae Systems (operations) Limited, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-081-9455 has 2 manufacturer part numbers on file: 229-022739 (Bae Systems (operations) Limited), 229-007572 (Bae Systems (operations) Limited).
Key specifications for 229-022739: Head Height: 0.075 INCHES NOMINAL IN; Fastener Length: 0.230 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-C-13924 CLASS 4 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.115 INCHES NOMINAL IN. 18 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.