The Screw,machine, cataloged under National Stock Number 5305-00-017-7797, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Allmetal Screw Products Corp. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-017-7797 |
| Primary Part Number | 177797 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Allmetal Screw Products Corp |
| Status | ACTIVE |
| Head Height | 0.102 INCHES MINIMUM AND 0.113 INCHES MAXIMUM IN |
| Screw Surface Treatment | CADMIUM OR ZINC |
| Fastener Length | 1.750 INCHES NOMINAL IN |
| Screw Material Document and Classification | QQ-S-633 FED SPEC ALL MATERIAL RESPONSES |
| Thread Length | 1.750 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | FILLISTER |
| Thread Direction | RIGHT-HAND |
| Nondefinitive Spec/std Data | 1 TYPE AND 4S STYLE |
| Screw Material | STEEL COMP 1010 OR STEEL COMP 1011 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.250 INCHES MINIMUM AND 0.270 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 |
|---|---|
| 177797 PRIMARY | Allmetal Screw Products Corp (USA) |
| Reference | Meaning |
|---|---|
| FFS92TYPE1STYLE4S | 4/1 Identification reference U.S. Government activity |
| 177797 | C/1 Advisory reference — outside the item-of-supply concept General Motors Llc Dba General Motors Llc |
| 177797 | 5/9 Secondary reference General Motors Corp |
NSN 5305-00-017-7797 is a Screw,machine, manufactured by Allmetal Screw Products Corp, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-017-7797 has 1 manufacturer part number on file: 177797 (Allmetal Screw Products Corp).
1 possible match (shared part number, not a government interchangeability claim): 1660-00-822-3288. Verify interchangeability with system specifications before substitution.
Key specifications for 177797: Head Height: 0.102 INCHES MINIMUM AND 0.113 INCHES MAXIMUM IN; Screw Surface Treatment: CADMIUM OR ZINC; Fastener Length: 1.750 INCHES NOMINAL IN; Screw Material Document and Classification: QQ-S-633 FED SPEC ALL MATERIAL RESPONSES. 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.
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.