The Ring,externally Threaded, cataloged under National Stock Number 5365-01-074-3671, is classified within Federal Supply Class 5365 (Bushings, Rings, Shims, and Spacers) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 18 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5365-01-074-3671 |
| Primary Part Number | 12271238 |
| Item Name | Ring,externally Threaded |
| FSC / FSG | 5365 / 53 — Bushings, Rings, Shims, and Spacers |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Bore Annular Internal Serration | NOT INCLUDED |
| Material Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| Beveled Thread | INCLUDED |
| Drive Type | SLOTTED FACE |
| Thread Location | BOTH ENDS |
| Bore Shape | STRAIGHT |
| Thread Direction | RIGHT-HAND |
| Setscrew Locking Notch | NOT INCLUDED |
| Accommodation Type and Quantity | 8 SLOTS |
| Casehardening Indicator | NOT CASEHARDENED |
| Angle Between Accommodations in Deg | 90.0 |
| Thread Size | 4.000-16 |
| Screw Thread Series Designator | UN |
| Depth | 0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN |
| Width | 0.250 INCHES NOMINAL IN |
| Thread Class | 3A A |
| Bore Diameter | 3.570 INCHES MINIMUM AND 3.590 INCHES MAXIMUM IN |
| Material | STEEL COMP 4140 |
| 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 |
|---|---|
| 12271238 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 12286465 | 5/9 Secondary reference U S Army Tank Automotive Command Amsta-Im-Mm |
| 3-140-008-03 | 5/2 Secondary reference U.S. Government activity |
NSN 5365-01-074-3671 is a Ring,externally Threaded, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.
NSN 5365-01-074-3671 has 1 manufacturer part number on file: 12271238 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12271238: Bore Annular Internal Serration: NOT INCLUDED; Material Hardness Rating: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM; Beveled Thread: INCLUDED; Drive Type: SLOTTED FACE. 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.