The Screw,cap,socket Head, cataloged under National Stock Number 5305-00-177-5568, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Prestolite Electric Inc. Government technical data includes 15 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5305-00-177-5568 |
| Primary Part Number | Z111031757 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Prestolite Electric Inc |
| Status | CANCELLED |
| Width Across Flats | 0.125 INCHES NOMINAL IN |
| Head Height | 0.250 INCHES MAXIMUM IN |
| Fastener Length | 0.984 INCHES MINIMUM AND 1.016 INCHES MAXIMUM IN |
| Thread Length | 0.884 INCHES MINIMUM AND 1.016 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | OXIDE OVERALL |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.375 INCHES MAXIMUM IN |
| 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 |
|---|---|
| Z111031757 PRIMARY | Prestolite Electric Inc (USA) |
| Reference | Meaning |
|---|---|
| 17KP233 | 5/9 Secondary reference Oshkosh Corp |
| 5305001775568 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 17KP233 | 7/2 Vendor item drawing reference Oshkosh Defense Llc |
| 31757 | 5/9 Secondary reference Prestolite Electric Inc |
| 10505802 | 7/2 Vendor item drawing reference General Dynamics Land Systems Canadacorp |
NSN 5305-00-177-5568 is a Screw,cap,socket Head, manufactured by Prestolite Electric Inc, classified under FSC 5305, Screws. Status: cancelled.
NSN 5305-00-177-5568 has 1 manufacturer part number on file: Z111031757 (Prestolite Electric Inc).
5 possible matches (shared part number, not a government interchangeability claim): 4410-00-346-6567, 2915-01-143-5662, 2590-01-181-3589. Verify interchangeability with system specifications before substitution.
Key specifications for Z111031757: Width Across Flats: 0.125 INCHES NOMINAL IN; Head Height: 0.250 INCHES MAXIMUM IN; Fastener Length: 0.984 INCHES MINIMUM AND 1.016 INCHES MAXIMUM IN; Thread Length: 0.884 INCHES MINIMUM AND 1.016 INCHES MAXIMUM IN. 15 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 5305-00-177-5568 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.