The Bolt,internally Relieved Body, cataloged under National Stock Number 5306-01-238-7181, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Tr Engineering, Inc Div Tr Engineering Incorporated. Government technical data includes 12 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. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-238-7181 |
| Primary Part Number | 150015 |
| Item Name | Bolt,internally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Tr Engineering, Inc Div Tr Engineering Incorporated |
| Status | ACTIVE |
| Head Height | 0.130 INCHES NOMINAL IN |
| Fastener Length | 0.500 INCHES NOMINAL IN |
| Extended Washer Diameter | 0.260 INCHES NOMINAL IN |
| Thread Length | 0.389 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | DOUBLE CHAMFER |
| Thread Direction | RIGHT-HAND |
| Concentric Hole Diameter | 0.260 INCHES NOMINAL IN |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP 1215 OVERALL |
| Head Diameter | 0.630 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 |
|---|---|
| 150015 PRIMARY | Tr Engineering, Inc Div Tr Engineering Incorporated (USA) |
NSN 5306-01-238-7181 is a Bolt,internally Relieved Body, manufactured by Tr Engineering, Inc Div Tr Engineering Incorporated, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-238-7181 has 1 manufacturer part number on file: 150015 (Tr Engineering, Inc Div Tr Engineering Incorporated).
3 possible matches (shared part number, not a government interchangeability claim): 6910-01-330-0853, 6220-01-518-1777, 2040-01-535-6602. Verify interchangeability with system specifications before substitution.
Key specifications for 150015: Head Height: 0.130 INCHES NOMINAL IN; Fastener Length: 0.500 INCHES NOMINAL IN; Extended Washer Diameter: 0.260 INCHES NOMINAL IN; Thread Length: 0.389 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN. 12 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.