The Stud Assembly,turnlock Fastener, cataloged under National Stock Number 5325-00-078-7560, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc Div Camloc Products. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-078-7560 |
| Primary Part Number | 4002-16S |
| Item Name | Stud Assembly,turnlock Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Howmet Global Fastening Systems Inc Div Camloc Products |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Eyelet Outside Diameter | 0.341 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN |
| Drive Type | SLOTTED |
| Material Accommodated Thickness | 0.501 INCHES MINIMUM AND 0.530 INCHES MAXIMUM IN |
| Diameter | 0.380 INCHES NOMINAL IN |
| Distance From Engaging Member to Largest Bearing Surface of Head | 0.843 INCHES MINIMUM AND 0.873 INCHES MAXIMUM IN |
| Turnlock Stud Head Style | FLAT COUNTERSUNK |
| Material | STEEL COMP 305 EYELET |
| Material | STEEL COMP 302 STUD |
| Material | STEEL COMP 302 PIN |
| Material | STEEL COMP 302 EJECTOR SPRING |
| 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 |
|---|---|
| BACS21X16C | Howmet Global Fastening Systems Inc Div Camloc Products (USA) |
| 4002-16S PRIMARY | Howmet Global Fastening Systems Inc Div Camloc Products (USA) |
| 4002-16S | Fairchild Fasteners Europe - Camloc Gmbh (DEU) |
| BACS21X16C PRIMARY | Monadnock Company, the Dba Lisi Aerospace (USA) |
| Reference | Meaning |
|---|---|
| 10605792-1 | 5/9 Secondary reference Lockheed Martin Corporation |
| 5325PL1727861 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| BACS21X16C | 7/2 Vendor item drawing reference U.S. Government activity |
| 40S5-16 | 5/9 Secondary reference Howmet Global Fastening Systems Inc Div Camloc Products |
| 10605792-1 | C/1 Advisory reference — outside the item-of-supply concept Lockheed Martin Corporation Div Rotary and Mission Systems |
| BACS21X16C | 5/9 Secondary reference The Boeing Company |
NSN 5325-00-078-7560 is a Stud Assembly,turnlock Fastener, manufactured by Howmet Global Fastening Systems Inc Div Camloc Products, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-078-7560 has 4 manufacturer part numbers on file: BACS21X16C (Howmet Global Fastening Systems Inc Div Camloc Products), 4002-16S (Howmet Global Fastening Systems Inc Div Camloc Products), 4002-16S (Fairchild Fasteners Europe - Camloc Gmbh), BACS21X16C (Monadnock Company, the Dba Lisi Aerospace).
1 possible match (shared part number, not a government interchangeability claim): 5325-01-501-6711. Verify interchangeability with system specifications before substitution.
Key specifications for 4002-16S: Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Eyelet Outside Diameter: 0.341 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN; Drive Type: SLOTTED; Material Accommodated Thickness: 0.501 INCHES MINIMUM AND 0.530 INCHES MAXIMUM IN. 13 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.