The Clamp,synchro, cataloged under National Stock Number 5340-00-571-9317, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 8 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5340-00-571-9317 |
| Primary Part Number | 2994543-7 |
| Item Name | Clamp,synchro |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Length | 0.312 INCHES NOMINAL IN |
| Material Document and Classification | ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE |
| Height | 0.188 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE |
| Width | 0.375 INCHES NOMINAL IN |
| Material | STEEL COMP 303 |
| Furnished Items | LOCKNUT |
| Hole Diameter | 0.128 INCHES NOMINAL IN |
| 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 |
|---|---|
| 2994543-7 PRIMARY | Naval Sea Systems Command (USA) |
| L2-7 | Roller Bearing Co of America, Inc Div Pic Design (USA) |
| Reference | Meaning |
|---|---|
| 42356-7 | 5/9 Secondary reference U.S. Government activity |
| 9M243M4 | 5/9 Secondary reference The Boeing Company Div Defense |
| 2994543-7 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| CP35-1-60-7 | 5/9 Secondary reference U.S. Government activity |
| 2994543-7 | 3/9 Design control — primary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| 8436862-7 | 5/9 Secondary reference Army, United States Department of the Dba Rock Island Arsenal Jmtc |
NSN 5340-00-571-9317 is a Clamp,synchro, manufactured by Naval Sea Systems Command, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-571-9317 has 2 manufacturer part numbers on file: 2994543-7 (Naval Sea Systems Command), L2-7 (Roller Bearing Co of America, Inc Div Pic Design).
2 possible matches (shared part number, not a government interchangeability claim): 6140-01-031-6877, 6515-01-623-5107. Verify interchangeability with system specifications before substitution.
Key specifications for 2994543-7: Length: 0.312 INCHES NOMINAL IN; Material Document and Classification: ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE; Height: 0.188 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN; Surface Treatment: PASSIVATE. 8 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.