The Clamp,synchro, cataloged under National Stock Number 5340-01-079-2998, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-079-2998 |
| Primary Part Number | 12287750 |
| Item Name | Clamp,synchro |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
| Status | ACTIVE |
| Length | 1.935 INCHES NOMINAL IN |
| Material Document and Classification | QQ-S-766 FED SPEC ALL MATERIAL RESPONSES |
| Width | 0.940 INCHES NOMINAL IN |
| Material | STEEL COMP 302 OR STEEL COMP 305 |
| Furnished Items | LOCKNUT |
| Hole Diameter | 0.522 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 |
|---|---|
| 12287750 PRIMARY | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
| Reference | Meaning |
|---|---|
| 5340010792998 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
NSN 5340-01-079-2998 is a Clamp,synchro, manufactured by Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-079-2998 has 1 manufacturer part number on file: 12287750 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate).
Key specifications for 12287750: Length: 1.935 INCHES NOMINAL IN; Material Document and Classification: QQ-S-766 FED SPEC ALL MATERIAL RESPONSES; Special Features: LOCK LEG HAS FLANGE 0.500 IN. H X0.620 IN. W BENT THROUGH 90 DEG ON 0.190 IN. RADIUS; LOCK LEG NOTCHED 0.590 IN. DEEP ON 0.220 IN. RADIUS CUT AWAY AT 65 DEG TO 0.815 IN. FROM END IN; Width: 0.940 INCHES NOMINAL IN. 6 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.