The Stud Assembly,turnlock Fastener, cataloged under National Stock Number 5325-00-689-7443, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Monadnock Company, the Dba Lisi Aerospace. Government technical data includes 16 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 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 | 5325-00-689-7443 |
| Primary Part Number | 1142000-42 |
| Item Name | Stud Assembly,turnlock Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Monadnock Company, the Dba Lisi Aerospace |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 2 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| Eyelet Outside Diameter | 0.341 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN |
| Drive Type | SLOTTED |
| Material Accommodated Thickness | 1.281 INCHES MINIMUM AND 1.310 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE PIN |
| Material Document and Classification | QQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE EJECTOR SPRING |
| Diameter | 0.377 INCHES MINIMUM AND 0.384 INCHES MAXIMUM IN |
| Distance From Engaging Member to Largest Bearing Surface of Head | 1.653 INCHES MINIMUM AND 1.663 INCHES MAXIMUM IN |
| Turnlock Stud Head Style | FLAT COUNTERSUNK |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Material | STEEL COMP 4037 STUD |
| Material | STEEL EJECTOR SPRING |
| Material | STEEL COMP 1009 OR STEEL COMP 1050 OR STEEL COMP 1112 EYELET |
| Material | STEEL PIN |
| Stud Assembly Style | STUD ASSEMBLY |
| Eyelet Length | 0.257 INCHES NOMINAL IN |
| 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 |
|---|---|
| 4002-42 | Howmet Global Fastening Systems Inc Div Camloc Products (USA) |
| 1142000-42 PRIMARY | Monadnock Company, the Dba Lisi Aerospace (USA) |
NSN 5325-00-689-7443 is a Stud Assembly,turnlock Fastener, manufactured by Monadnock Company, the Dba Lisi Aerospace, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-689-7443 has 2 manufacturer part numbers on file: 4002-42 (Howmet Global Fastening Systems Inc Div Camloc Products), 1142000-42 (Monadnock Company, the Dba Lisi Aerospace).
3 possible matches (shared part number, not a government interchangeability claim): 5950-00-997-8266, 5330-01-195-8895, 5995-01-692-9691. Verify interchangeability with system specifications before substitution.
Key specifications for 1142000-42: Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 2 FED SPEC ALL TREATMENT RESPONSES OVERALL; Eyelet Outside Diameter: 0.341 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN; Drive Type: SLOTTED; Material Accommodated Thickness: 1.281 INCHES MINIMUM AND 1.310 INCHES MAXIMUM IN. 16 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.