The Screw,shoulder, cataloged under National Stock Number 5305-01-079-5588, 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 20 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-079-5588 |
| Primary Part Number | 229-007090 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Bae Systems (operations) Limited |
| Status | ACTIVE |
| Head Height | 0.065 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN |
| Fastener Length | 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN |
| Shoulder Length | 0.040 INCHES NOMINAL SECOND SHOULDER IN |
| Shoulder Length | 0.290 INCHES NOMINAL FIRST SHOULDER IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 0.085 INCHES MINIMUM AND 0.095 INCHES MAXIMUM FIRST SHOULDER IN |
| Shoulder Diameter | 0.164 INCHES NOMINAL SECOND SHOULDER IN |
| Thread Length | 0.140 INCHES NOMINAL IN |
| Shoulder Shape | ROUND ALL SHOULDERS |
| Material Document and Classification | MIL-S-18732 MIL SPEC SINGLE MATERIAL RESPONSE OR B.S. S80 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.112 INCHES IN |
| Head Style | PAN NO. 2 |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | SLOT |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 40 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM 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 |
|---|---|
| 229-007090 PRIMARY | Bae Systems (operations) Limited (GBR) |
NSN 5305-01-079-5588 is a Screw,shoulder, manufactured by Bae Systems (operations) Limited, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-079-5588 has 1 manufacturer part number on file: 229-007090 (Bae Systems (operations) Limited).
Key specifications for 229-007090: Head Height: 0.065 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN; Fastener Length: 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN; Shoulder Length: 0.040 INCHES NOMINAL SECOND SHOULDER IN; Shoulder Length: 0.290 INCHES NOMINAL FIRST SHOULDER IN. 20 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.