The Screw,machine, cataloged under National Stock Number 5305-00-177-5643, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Pattonair Usa Inc Dba Incora Div Uniseal Division. Government technical data includes 16 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-177-5643 |
| Primary Part Number | AB2503E14 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Pattonair Usa Inc Dba Incora Div Uniseal Division |
| Status | ACTIVE |
| Head Height | 0.125 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN |
| Screw Surface Treatment | CADMIUM |
| Fastener Length | 0.860 INCHES MINIMUM AND 0.905 INCHES MAXIMUM IN |
| Screw Material Document and Classification | QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE |
| Thread Length | 0.377 INCHES MINIMUM AND 0.452 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | WATERTIGHT |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL COMP 4037 |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Thread Series Designator | UNF |
| Head Diameter | 0.420 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN |
| Screw Surface Treatment Document and Classification | QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5305-00-177-5643 is a Screw,machine, manufactured by Pattonair Usa Inc Dba Incora Div Uniseal Division, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-177-5643 has 2 manufacturer part numbers on file: 11070004 (Us Army Aviation and Missile Command), AB2503E14 (Pattonair Usa Inc Dba Incora Div Uniseal Division).
Key specifications for AB2503E14: Head Height: 0.125 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN; Screw Surface Treatment: CADMIUM; Fastener Length: 0.860 INCHES MINIMUM AND 0.905 INCHES MAXIMUM IN; Screw Material Document and Classification: QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE. 16 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.