The Clamp,block,section, cataloged under National Stock Number 5340-01-312-4073, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Bae Systems Land & Armaments L.p.. 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. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-312-4073 |
| Primary Part Number | 31W-0026 |
| Item Name | Clamp,block,section |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Bae Systems Land & Armaments L.p. |
| Status | ACTIVE |
| Mounting Hole Quantity | 2 |
| Clamping Hole Quantity | 1 |
| Distance From End to First Clamping Hole Center | 1.750 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | TT-E-516 FED SPEC SINGLE TREATMENT RESPONSE OR MIL-E-52891 MIL SPEC SINGLE TREATMENT RESPONSE |
| Block Height | 0.750 INCHES NOMINAL IN |
| Style Designator | RECTANGULAR |
| Material Document and Classification | AISI ASSN STD ALL MATERIAL RESPONSES |
| Mounting Hole Diameter | 0.279 INCHES MINIMUM AND 0.289 INCHES MAXIMUM IN |
| Mounting Facility | UNTHREADED HOLE(S) |
| Surface Treatment | ENAMEL SYNTHETIC LUSTERLESS |
| Material | STEEL COMP 1015 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1020 OR STEEL COMP 1023 OR STEEL COMP 1025 OR STEEL COMP 1026 |
| 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 |
|---|---|
| 31W-0026 PRIMARY | Bae Systems Land & Armaments L.p. (USA) |
NSN 5340-01-312-4073 is a Clamp,block,section, manufactured by Bae Systems Land & Armaments L.p., classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-312-4073 has 1 manufacturer part number on file: 31W-0026 (Bae Systems Land & Armaments L.p.).
Key specifications for 31W-0026: Mounting Hole Quantity: 2; Clamping Hole Quantity: 1; Distance From End to First Clamping Hole Center: 1.750 INCHES NOMINAL IN; Surface Treatment Document and Classification: TT-E-516 FED SPEC SINGLE TREATMENT RESPONSE OR MIL-E-52891 MIL SPEC SINGLE TREATMENT RESPONSE. 11 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.