The Screw,machine, cataloged under National Stock Number 5305-01-159-3884, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Abston Machine Shop, Inc. Dba Abston Machine Shop Inc. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5305-01-159-3884 |
| Primary Part Number | 13027280 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Abston Machine Shop, Inc. Dba Abston Machine Shop Inc |
| Status | ACTIVE |
| Head Height | 4.00 MILLIMETERS NOMINAL MM |
| Bearing Surface of Head Surface Treatment Document and Classification | QQ-P-35, TYPE II FED SPEC SINGLE TREATMENT RESPONSE |
| Screw Surface Treatment | PASSIVATE |
| Fastener Length | 28.750 MILLIMETERS MINIMUM AND 29.250 MILLIMETERS MAXIMUM MM |
| Screw Material Document and Classification | ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Pitch in Millimeters | 1.0 |
| Thread Length | 26.20 MILLIMETERS MINIMUM AND 27.80 MILLIMETERS MAXIMUM MM |
| Nominal Thread Diameter | 6.0 MILLIMETERS MM |
| Head Style | SQUARE |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 20.00 MILLIMETERS MINIMUM AND 21.00 MILLIMETERS MAXIMUM MM |
| Screw Material | STEEL COMP 303 |
| Internal Drive Style | W/O INTERNAL DRIVE |
| Thread Series Designator | M |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5305-01-159-3884 is a Screw,machine, manufactured by Abston Machine Shop, Inc. Dba Abston Machine Shop Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-159-3884 has 2 manufacturer part numbers on file: 13027280 (Abston Machine Shop, Inc. Dba Abston Machine Shop Inc), 13027280 (Us Army Aviation and Missile Command).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-604-6009. Verify interchangeability with system specifications before substitution.
Key specifications for 13027280: Head Height: 4.00 MILLIMETERS NOMINAL MM; Bearing Surface of Head Surface Treatment Document and Classification: QQ-P-35, TYPE II FED SPEC SINGLE TREATMENT RESPONSE; Screw Surface Treatment: PASSIVATE; Fastener Length: 28.750 MILLIMETERS MINIMUM AND 29.250 MILLIMETERS MAXIMUM MM. 14 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.