The Insert,screw Thread, cataloged under National Stock Number 5325-01-038-7288, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Penn Engineering & Manufacturing Corp. Government technical data includes 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5325-01-038-7288 |
| Primary Part Number | IBC-256-6 |
| Item Name | Insert,screw Thread |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Penn Engineering & Manufacturing Corp |
| Status | ACTIVE |
| Length | 0.219 INCHES NOMINAL IN |
| Knurl Length | 0.117 INCHES NOMINAL IN |
| Insert Size | 0.156 IN. DIA IN |
| Material Document and Classification | MIK-S-7720 MIL SPEC ALL MATERIAL RESPONSES OVERALL |
| Nominal Thread Size | 0.086 INCHES IN |
| Top Unthreaded Portion Outside Diameter | 0.142 INCHES NOMINAL IN |
| Top Portion Unthreaded Outside Length | 0.031 INCHES NOMINAL IN |
| Thread Class | 2B |
| Thread Quantity Per Inch | 56 |
| Material | STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 316 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| IBC-256-6 PRIMARY | Penn Engineering & Manufacturing Corp (USA) |
| Reference | Meaning |
|---|---|
| IBC-256-6 | 3/9 Design control — primary reference Standard Insert Co Inc |
| 6B256C | 5/9 Secondary reference Standard Insert Co Inc |
NSN 5325-01-038-7288 is a Insert,screw Thread, manufactured by Penn Engineering & Manufacturing Corp, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-038-7288 has 1 manufacturer part number on file: IBC-256-6 (Penn Engineering & Manufacturing Corp).
Key specifications for IBC-256-6: Length: 0.219 INCHES NOMINAL IN; Knurl Length: 0.117 INCHES NOMINAL IN; Insert Size: 0.156 IN. DIA IN; Material Document and Classification: MIK-S-7720 MIL SPEC ALL MATERIAL RESPONSES OVERALL. 11 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.