The Screw,shoulder, cataloged under National Stock Number 5305-01-334-6988, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 20 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-334-6988 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.027 INCHES MINIMUM AND 0.032 INCHES MAXIMUM IN |
| Fastener Length | 0.150 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN |
| Shoulder Length | 0.018 INCHES MINIMUM AND 0.028 INCHES MAXIMUM FIRST SHOULDER IN |
| Surface Treatment Document and Classification | QQ-P-36, TY IV ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 0.086 INCHES MINIMUM AND 0.090 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.137 INCHES NOMINAL IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | QQ-S-764, COND A FED SPEC ALL MATERIAL RESPONSES OVERALL |
| Nominal Thread Diameter | 0.060 INCHES IN |
| Head Style | PAN |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 81349-MIL-C-28754/40 GOVERNMENT SPECIFICATION |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Test Data Document | 81349-MIL-C-28754 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| Thread Quantity Per Inch | 80 |
| Material | STEEL COMP 303 OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 0.145 INCHES MINIMUM AND 0.155 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 |
| Reference | Meaning |
|---|---|
| MIL-C-28754/40 | 5/9 Secondary reference U.S. Government activity |
| M28754/40-01 | 2/2 Government specification standardization U.S. Government activity |
| MIL-DTL-28754/40 | 4/1 Identification reference U.S. Government activity |
NSN 5305-01-334-6988 is a Screw,shoulder, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-334-6988: Head Height: 0.027 INCHES MINIMUM AND 0.032 INCHES MAXIMUM IN; Fastener Length: 0.150 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN; Shoulder Length: 0.018 INCHES MINIMUM AND 0.028 INCHES MAXIMUM FIRST SHOULDER IN; Surface Treatment Document and Classification: QQ-P-36, TY IV ASSN STD SINGLE TREATMENT RESPONSE OVERALL. 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.