The Clamp,synchro, cataloged under National Stock Number 5340-01-431-3565, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Hoffman Engineering Co Div of Federal Cartridge Corp. Government technical data includes 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-431-3565 |
| Primary Part Number | AL16 |
| Item Name | Clamp,synchro |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Hoffman Engineering Co Div of Federal Cartridge Corp |
| Status | ACTIVE |
| Style Designator | MOUNTING |
| Nominal Thread Size | 0.250 INCHES IN |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| AL16 PRIMARY | Hoffman Engineering Co Div of Federal Cartridge Corp (USA) |
| Reference | Meaning |
|---|---|
| ZL16 | 5/9 Secondary reference Hoffman Engineering Co Div of Federal Cartridge Corp |
| 9543494 | D/9 Drawing number reference only U.S. Government activity |
| 9543494 | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 5340-01-431-3565 is a Clamp,synchro, manufactured by Hoffman Engineering Co Div of Federal Cartridge Corp, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-431-3565 has 1 manufacturer part number on file: AL16 (Hoffman Engineering Co Div of Federal Cartridge Corp).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-534-8131. Verify interchangeability with system specifications before substitution.
Key specifications for AL16: Style Designator: MOUNTING; Nominal Thread Size: 0.250 INCHES IN; Special Features: THE SCREW IS 1/4 IN -28 UNF X .75 LONG. WASHER, P/N B18.22.1 IS MADE FROM CRES 1/4 IN NOMINAL, NARROW SERIES PER ANSI AND IS STOCKLISTED TO NSN5310-01-239-8859. THE SPRING IS MADE FROM 20 GAGE 316L CRES SPRING WIRE 4-5 COILS, .44-.50 UNCOMPRESSED. THE CLAMP IS MADE FROM 12 GAGE (.100-.110 THICK), CRES AISI 304, ANNEALED IN; End Item Identification: AN/TPS-75. THE SUBMITTED ITEM NAME WAS CLAMP ASSEMBLY. 3 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.