The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-00-225-3838, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Pdi Ground Support Systems, Inc.. Government technical data includes 18 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through both NSN and commercial part number lookups. 10 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5305-00-225-3838 |
| Primary Part Number | 4900-75 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Pdi Ground Support Systems, Inc. |
| Status | CANCELLED |
| Head Height | 0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN |
| Fastener Length | 0.562 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.562 INCHES MAXIMUM IN |
| Hardness Rating | 23.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | SAE GR 5 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN |
| Nondefinitive Spec/std Data | 2 TYPE AND 100P STYLE |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 120000 POUNDS PER SQUARE INCH LBS |
| Minimum Yield Strength | 85000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Acquisition Status | CANCELLED |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 4900-75 | Pdi Ground Support Systems, Inc. (USA) |
| Reference | Meaning |
|---|---|
| MS90725-4 | 5/9 Secondary reference Amrehn Normbauteile Gmbh |
| 5305PL1368829 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| FF-S-85 | 4/1 Identification reference U.S. Government activity |
| 5305002253838 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| MS35297-4 | 5/9 Secondary reference U.S. Government activity |
| MS90725-4 | 3/2 Design control — primary reference U.S. Government activity |
| 5305PL0682842 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| MS90725-4 | 5/9 Secondary reference U.S. Government activity |
| NASM90725 | 3/1 Design control — primary reference U.S. Government activity |
| MS90725-4 | 5/9 Secondary reference Servicios Y Proyectos Avanzados S.a. |
NSN 5305-00-225-3838 is a Screw,cap,hexagon Head, manufactured by Pdi Ground Support Systems, Inc., classified under FSC 5305, Screws. Status: cancelled.
NSN 5305-00-225-3838 has 1 manufacturer part number on file: 4900-75 (Pdi Ground Support Systems, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-337-9524. Verify interchangeability with system specifications before substitution.
Key specifications for 4900-75: Head Height: 0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN; Fastener Length: 0.562 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416,TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.562 INCHES MAXIMUM 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.
NSN 5305-00-225-3838 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.
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.