The Collar,shaft, cataloged under National Stock Number 5340-01-657-3612, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Bath Iron Works Corporation. Government technical data includes 10 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. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-657-3612 |
| Primary Part Number | 8100-1251-0265 PT NO 118 |
| Item Name | Collar,shaft |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Bath Iron Works Corporation |
| Status | ACTIVE |
| Securing Hole Type and Location | UNTHREADED ALL HOLES |
| Style Designator | PLAIN ROUND |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE |
| Outside Diameter | 2.500 INCHES NOMINAL IN |
| Hole Diameter and Location | 0.156 INCHES NOMINAL ALL HOLES IN |
| Angle Between Centerlines of Securing Holes in Deg | 45.0 |
| Securing Hole Quantity | 5 |
| Bore Diameter | 1.6875 INCHES NOMINAL IN |
| Material | STEEL COMP 316L |
| Thickness | 0.250 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 8100-1251-0265 PT NO 118 PRIMARY | Bath Iron Works Corporation (USA) |
NSN 5340-01-657-3612 is a Collar,shaft, manufactured by Bath Iron Works Corporation, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-657-3612 has 1 manufacturer part number on file: 8100-1251-0265 PT NO 118 (Bath Iron Works Corporation).
Key specifications for 8100-1251-0265 PT NO 118: Securing Hole Type and Location: UNTHREADED ALL HOLES; Style Designator: PLAIN ROUND; Material Document and Classification: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE; Outside Diameter: 2.500 INCHES NOMINAL IN. 10 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.