The Screw,shoulder, cataloged under National Stock Number 5305-00-855-1970, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Allison Transmission Inc Dba Allison Transmission, Inc. Government technical data includes 16 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-855-1970 |
| Primary Part Number | 6863072 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Allison Transmission Inc Dba Allison Transmission, Inc |
| Status | ACTIVE |
| Head Height | 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN |
| Fastener Length | 1.178 INCHES MINIMUM AND 1.198 INCHES MAXIMUM IN |
| Shoulder Length | 0.190 INCHES MINIMUM AND 0.250 INCHES MAXIMUM FIRST SHOULDER IN |
| Distance From Centerline to Flat | 0.145 INCHES MINIMUM AND 0.155 INCHES MAXIMUM IN |
| Shoulder Diameter | 0.890 INCHES NOMINAL FIRST SHOULDER IN |
| Thread Length | 0.813 INCHES NOMINAL IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Nominal Thread Diameter | 0.870 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Minimum Tensile Strength | 236000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | W/O INTERNAL DRIVE |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNS |
| Head Diameter | 0.365 INCHES MINIMUM AND 0.385 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 |
NSN 5305-00-855-1970 is a Screw,shoulder, manufactured by Allison Transmission Inc Dba Allison Transmission, Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-855-1970 has 3 manufacturer part numbers on file: 6863072 (Allison Transmission Inc Dba Allison Transmission, Inc), 6863072 (Rolls-Royce Airlines), BLT1892 (Rolls-Royce Airlines).
Key specifications for 6863072: Head Height: 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN; Fastener Length: 1.178 INCHES MINIMUM AND 1.198 INCHES MAXIMUM IN; Shoulder Length: 0.190 INCHES MINIMUM AND 0.250 INCHES MAXIMUM FIRST SHOULDER IN; Distance From Centerline to Flat: 0.145 INCHES MINIMUM AND 0.155 INCHES MAXIMUM IN. 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.