PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4002-21WStud Assembly,turnlock Fastener

Howmet Global Fastening Systems Inc Div Camloc Products · NSN 5325-00-936-0089 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-936-0089 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-936-0089. Primary manufacturer part number: 4002-21W.
Features
  • Stud Assembly,turnlock Fastener — FSC 5325
  • Material: STEEL COMP 1009 OR STEEL COMP 1050 OR STEEL COMP 1112 EYELET
  • Material Document and Classification: QQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE PIN
  • Material: STEEL PIN
  • Surface Treatment: CADMIUM AND CHROMATE OVERALL
  • Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 2 FED SPEC ALL TREATMENT RESPONSES OVERALL
  • Stud Assembly Style: STUD ASSEMBLY
  • Material: STEEL COMP 1009 HEAD
Applications
  • Applications requiring Steel Comp 1009 or Steel Comp 1050 or Steel Comp 1112 Eyelet construction
General Description

The Stud Assembly,turnlock Fastener, cataloged under National Stock Number 5325-00-936-0089, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Howmet Global Fastening Systems Inc Div Camloc Products. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5325-00-936-0089
Primary Part Number4002-21W
Item NameStud Assembly,turnlock Fastener
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerHowmet Global Fastening Systems Inc Div Camloc Products
StatusACTIVE
MaterialSTEEL COMP 1009 OR STEEL COMP 1050 OR STEEL COMP 1112 EYELET
Material Document and ClassificationQQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE PIN
MaterialSTEEL PIN
Surface TreatmentCADMIUM AND CHROMATE OVERALL
Surface Treatment Document and ClassificationQQ-P-416,TY 2,CL 2 FED SPEC ALL TREATMENT RESPONSES OVERALL
Stud Assembly StyleSTUD ASSEMBLY
MaterialSTEEL COMP 1009 HEAD
Material Accommodated Thickness0.651 INCHES MINIMUM AND 0.680 INCHES MAXIMUM IN
Eyelet Outside Diameter0.341 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN
MaterialSTEEL EJECTOR SPRING
Eyelet Length0.220 INCHES NOMINAL IN
Head Length0.480 INCHES MINIMUM AND 0.890 INCHES MAXIMUM IN
MaterialSTEEL COMP 4037 STUD
Material Document and ClassificationQQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE EJECTOR SPRING
Distance From Engaging Member to Largest Bearing Surface of Head1.033 INCHES MINIMUM AND 1.038 INCHES MAXIMUM IN
Turnlock Stud Head StyleFLAT COUNTERSUNK WING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5325-00-290-82314002-10 INTERCHANGEABLE
Stud Assembly,turnlock Fastener
Howmet Global Fastening Systems Inc Div Camloc Products
5325-00-727-9945BACS21X11S INTERCHANGEABLE
Stud Assembly,turnlock Fastener
The Boeing Company Div Defense
5325-00-839-2277BACS21X10C INTERCHANGEABLE
Stud Assembly,turnlock Fastener
The Boeing Company Div Defense
5325-01-132-65854002-13SW INTERCHANGEABLE
Stud Assembly,turnlock Fastener
Howmet Global Fastening Systems Inc Div Camloc Products
Cross-Reference Index
Part NumberManufacturer
BACS21X The Boeing Company Div Defense (USA)
1142007-21 Monadnock Company, the Dba Lisi Aerospace (USA)
BACS21ED21W The Boeing Company Div Defense (USA)
4002-21W PRIMARY Howmet Global Fastening Systems Inc Div Camloc Products (USA)
BACS21X21W The Boeing Company Div Defense (USA)
Related Parts
5325-00-290-8231INTERCHANGEABLE
STUD ASSEMBLY,TURNLOCK FASTENER
4002-10
5325-00-727-9945INTERCHANGEABLE
STUD ASSEMBLY,TURNLOCK FASTENER
BACS21X11S
5325-00-839-2277INTERCHANGEABLE
STUD ASSEMBLY,TURNLOCK FASTENER
BACS21X10C
5325-01-132-6585INTERCHANGEABLE
STUD ASSEMBLY,TURNLOCK FASTENER
4002-13SW

Frequently Asked Questions

What is NSN 5325-00-936-0089?

NSN 5325-00-936-0089 is a Stud Assembly,turnlock Fastener, manufactured by Howmet Global Fastening Systems Inc Div Camloc Products, classified under FSC 5325 (No Item Name Available). Status: active.

What are the part numbers for NSN 5325-00-936-0089?

NSN 5325-00-936-0089 has 5 cross-referenced part numbers: BACS21X (The Boeing Company Div Defense), 1142007-21 (Monadnock Company, the Dba Lisi Aerospace), BACS21ED21W (The Boeing Company Div Defense), 4002-21W (Howmet Global Fastening Systems Inc Div Camloc Products), BACS21X21W (The Boeing Company Div Defense).

What NSN replaces 5325-00-936-0089?

There are 4 known substitutes for 5325-00-936-0089: 5325-00-290-8231, 5325-00-727-9945, 5325-00-839-2277 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4002-21W?

Key specifications for 4002-21W: Material: STEEL COMP 1009 OR STEEL COMP 1050 OR STEEL COMP 1112 EYELET; Material Document and Classification: QQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE PIN; Material: STEEL PIN; Surface Treatment: CADMIUM AND CHROMATE OVERALL. 16 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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