The Screw,shoulder, cataloged under National Stock Number 5305-01-692-5155, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Huck International, Inc. Government technical data includes 21 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-692-5155 |
| Primary Part Number | HO44B4-5R |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Fastener Length | 0.6825 INCHES NOMINAL IN |
| Shoulder Length | 0.3125 INCHES NOMINAL GRIP IN |
| Surface Treatment Document and Classification | MIL-C-83488, TYPE II, CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 0.2641 INCHES MINIMUM AND 0.2651 INCHES MAXIMUM GRIP IN |
| Thread Length | 0.370 INCHES NOMINAL IN |
| Shoulder Shape | ROUND GRIP |
| Hardness Rating | 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM GRIP |
| Material Document and Classification | AMS6487 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Features Provided | DRY FILM LUBRICANT |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | ALUMINUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 6980 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | OFFSET CRUCIFORM (TORQUE SET) |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP H11 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.447 INCHES MINIMUM AND 0.507 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 |
|---|---|
| HO44B4-5R PRIMARY | Huck International, Inc (USA) |
| VT1693AS4-5X PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| AIC984B4-5R PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 121557-4-A5BX PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| HO44B4-5R | 5/9 Secondary reference U.S. Government activity |
| C7984B4-5R | 7/2 Vendor item drawing reference U.S. Government activity |
| VT1693AS4-5X | 3/2 Design control — primary reference U.S. Government activity |
| 121557-4-A5BX | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-692-5155 is a Screw,shoulder, manufactured by Huck International, Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-692-5155 has 4 manufacturer part numbers on file: HO44B4-5R (Huck International, Inc), VT1693AS4-5X (Howmet Global Fastening Systems Inc), AIC984B4-5R (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), 121557-4-A5BX (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for HO44B4-5R: Fastener Length: 0.6825 INCHES NOMINAL IN; Shoulder Length: 0.3125 INCHES NOMINAL GRIP IN; Surface Treatment Document and Classification: MIL-C-83488, TYPE II, CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Shoulder Diameter: 0.2641 INCHES MINIMUM AND 0.2651 INCHES MAXIMUM GRIP IN. 21 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.