The Screw,shoulder, cataloged under National Stock Number 5305-00-070-1963, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Astral Air Parts Inc. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-070-1963 |
| Primary Part Number | 308R703H01 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Astral Air Parts Inc |
| Status | ACTIVE |
| Head Height | 0.035 INCHES NOMINAL IN |
| Fastener Length | 0.385 INCHES NOMINAL IN |
| Shoulder Length | 0.035 INCHES NOMINAL FIRST SHOULDER IN |
| Surface Treatment Document and Classification | QQ-P-35,TY 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 0.140 INCHES NOMINAL FIRST SHOULDER IN |
| Thread Length | 0.300 INCHES MINIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | ASTM A582 COND A ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.112 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 40 |
| Material | STEEL COMP 303 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.180 INCHES NOMINAL 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 |
|---|---|
| 308R703H01 | Astral Air Parts Inc (USA) |
| 308R703H01 | R and S Machine Co (USA) |
| 308R703H01 | Asi Design & Manufacturing, Inc. Dba a S I (USA) |
| Reference | Meaning |
|---|---|
| 308R703H01 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-00-070-1963 is a Screw,shoulder, manufactured by Astral Air Parts Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-070-1963 has 3 manufacturer part numbers on file: 308R703H01 (Astral Air Parts Inc), 308R703H01 (R and S Machine Co), 308R703H01 (Asi Design & Manufacturing, Inc. Dba a S I).
Key specifications for 308R703H01: Head Height: 0.035 INCHES NOMINAL IN; Fastener Length: 0.385 INCHES NOMINAL IN; Shoulder Length: 0.035 INCHES NOMINAL FIRST SHOULDER IN; Surface Treatment Document and Classification: QQ-P-35,TY 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 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.
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.