PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4002-28Stud Assembly,turnlock Fastener

Howmet Global Fastening Systems Inc Div Camloc Products · NSN 5325-00-734-9263 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-734-9263 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-734-9263. Primary manufacturer part number: 4002-28.
Features
  • Stud Assembly,turnlock Fastener — FSC 5325
  • Material Document and Classification: QQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE EJECTOR SPRING
  • Drive Type: SLOTTED
  • Material: STEEL EJECTOR SPRING
  • Surface Treatment: CADMIUM AND CHROMATE OVERALL
  • Material: STEEL COMP 4037 STUD
  • Eyelet Length: 0.257 INCHES NOMINAL IN
  • Material Accommodated Thickness: 0.861 INCHES MINIMUM AND 0.890 INCHES MAXIMUM IN
Applications
  • Applications requiring Steel Ejector Spring construction
General Description

The Stud Assembly,turnlock Fastener, cataloged under National Stock Number 5325-00-734-9263, 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 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5325-00-734-9263
Primary Part Number4002-28
Item NameStud Assembly,turnlock Fastener
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerHowmet Global Fastening Systems Inc Div Camloc Products
StatusACTIVE
Material Document and ClassificationQQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE EJECTOR SPRING
Drive TypeSLOTTED
MaterialSTEEL EJECTOR SPRING
Surface TreatmentCADMIUM AND CHROMATE OVERALL
MaterialSTEEL COMP 4037 STUD
Eyelet Length0.257 INCHES NOMINAL IN
Material Accommodated Thickness0.861 INCHES MINIMUM AND 0.890 INCHES MAXIMUM IN
Surface Treatment Document and ClassificationQQ-P-416 TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Turnlock Stud Head StyleFLAT COUNTERSUNK
Diameter0.377 INCHES MINIMUM AND 0.384 INCHES MAXIMUM IN
Stud Assembly StyleSTUD ASSEMBLY
Distance From Engaging Member to Largest Bearing Surface of Head1.238 INCHES NOMINAL IN
Eyelet Outside Diameter0.341 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN
Material Document and ClassificationQQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE PIN
MaterialSTEEL COMP 1009 OR STEEL COMP 1050 OR STEEL COMP 1112 EYELET
MaterialSTEEL PIN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5330-00-291-15111D4327 INTERCHANGEABLE
Seal,plain Encased
Caterpillar Inc Div Caterpillar Defense
5961-01-104-3845400228 INTERCHANGEABLE
Semiconductor Device,diode
Dictaphone Corporation
5342-01-494-0375400228 INTERCHANGEABLE
Bracket,brake Valve
Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba
Cross-Reference Index
Part NumberManufacturer
4002-28 PRIMARY Howmet Global Fastening Systems Inc Div Camloc Products (USA)
Related Parts
5330-00-291-1511INTERCHANGEABLE
SEAL,PLAIN ENCASED
1D4327
5961-01-104-3845INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
400228
5342-01-494-0375INTERCHANGEABLE
BRACKET,BRAKE VALVE
400228

Frequently Asked Questions

What is NSN 5325-00-734-9263?

NSN 5325-00-734-9263 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 5325-00-734-9263?

NSN 5325-00-734-9263 has 1 cross-referenced part number: 4002-28 (Howmet Global Fastening Systems Inc Div Camloc Products).

What NSN replaces 5325-00-734-9263?

There are 3 known substitutes for 5325-00-734-9263: 5330-00-291-1511, 5961-01-104-3845, 5342-01-494-0375. Verify interchangeability with system specifications before substitution.

What are the specifications of 4002-28?

Key specifications for 4002-28: Material Document and Classification: QQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE EJECTOR SPRING; Drive Type: SLOTTED; Material: STEEL EJECTOR SPRING; 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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