The Insert,screw Thread, cataloged under National Stock Number 5325-01-535-5501, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Avk Industries Products Inc. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 5325-01-535-5501 |
| Primary Part Number | AKS9T-518-312 |
| Item Name | Insert,screw Thread |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Avk Industries Products Inc |
| Status | ACTIVE |
| Flange Diameter | 0.560 INCHES NOMINAL IN |
| Length | 0.835 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | B633, TY2 CL FE/ZN 5 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Flange Thickness | 0.030 INCHES NOMINAL IN |
| Insert Size | 0.530 IN. OD IN |
| Style Designator | SERRATED |
| Material Document and Classification | A108 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.312 INCHES IN |
| Surface Treatment | ZINC OVERALL |
| Thread Class | 2B |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP 1008 OR STEEL COMP 1009 OR STEEL COMP 1010 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 |
|---|---|
| 12446871-15 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| AKS9T-518-312 PRIMARY | Avk Industries Products Inc (USA) |
| Reference | Meaning |
|---|---|
| AKS9-518-312 | 5/9 Secondary reference Avk Industries Products Inc |
| 12446871 | D/9 Drawing number reference only U S Army Tank Automotive Command Amsta-Im-Mm |
| AKS4-518-312 | 5/9 Secondary reference Avk Industries Products Inc |
NSN 5325-01-535-5501 is a Insert,screw Thread, manufactured by Avk Industries Products Inc, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-535-5501 has 2 manufacturer part numbers on file: 12446871-15 (U S Army Tank Automotive Command Amsta-Im-Mm), AKS9T-518-312 (Avk Industries Products Inc).
4 possible matches (shared part number, not a government interchangeability claim): 5325-01-548-2516, 5325-01-570-8646, 5325-01-578-9754. Verify interchangeability with system specifications before substitution.
Key specifications for AKS9T-518-312: Flange Diameter: 0.560 INCHES NOMINAL IN; Length: 0.835 INCHES NOMINAL IN; Surface Treatment Document and Classification: B633, TY2 CL FE/ZN 5 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Flange Thickness: 0.030 INCHES NOMINAL IN. 14 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.