PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C393-4-4-2Receptacle,turnlock Fastener

Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company · NSN 5325-00-197-2814 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-197-2814 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-197-2814. Primary manufacturer part number: C393-4-4-2.
Features
  • Receptacle,turnlock Fastener — FSC 5325
  • Turnlock Receptacle Style: RECEPTACLE
  • Surface Treatment: CADMIUM AND CHROMATE OVERALL
  • Mounting Style: PLAIN W/MOUNTING HOLE
  • Material: STEEL COMP 1050 RETAINER
  • Material: STEEL COMP 8740 BARREL
  • Material Document and Classification: AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE BARREL
  • Turnlock Mounting Hole Diameter: 0.098 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN
Applications
  • Applications requiring Steel Comp 1050 Retainer construction
General Description

The Receptacle,turnlock Fastener, cataloged under National Stock Number 5325-00-197-2814, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5325-00-197-2814
Primary Part NumberC393-4-4-2
Item NameReceptacle,turnlock Fastener
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Lockheed Martin Aeronautics Company
StatusACTIVE
Turnlock Receptacle StyleRECEPTACLE
Surface TreatmentCADMIUM AND CHROMATE OVERALL
Mounting StylePLAIN W/MOUNTING HOLE
MaterialSTEEL COMP 1050 RETAINER
MaterialSTEEL COMP 8740 BARREL
Material Document and ClassificationAMS 6322 ASSN STD SINGLE MATERIAL RESPONSE BARREL
Turnlock Mounting Hole Diameter0.098 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN
MaterialSTEEL COMP 8740 STUD
Material Document and ClassificationASM 6322 ASSN STD SINGLE MATERIAL RESPONSE STUD
Center to Center Distance Between Mounting Holes0.748 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN
Receptacle Overall Length1.012 INCHES MAXIMUM IN
Receptacle Height0.332 INCHES MAXIMUM IN
Receptacle Width0.410 INCHES MAXIMUM IN
Surface Treatment Document and ClassificationQQ-P-416 TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Receptacle Thread Size and Series/type Designator0.164-32 UNJC
Material Document and ClassificationSAE ASSN STD SINGLE MATERIAL RESPONSE RETAINER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3110-00-100-0642 INTERCHANGEABLE
Cone and Rollers,tapered Roller
1680-00-133-6085 INTERCHANGEABLE
Control Assy,seat
Cross-Reference Index
Part NumberManufacturer
C393-4-4-2 PRIMARY Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company (USA)
C393-4-4-2 Sps Technologies, Llc Dba PB Fasteners (USA)
C393-4-4-2 Howmet Global Fastening Systems Inc Div Torrance Operations (USA)
C393 Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company (USA)
Related Parts
3110-00-100-0642INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
1680-00-133-6085INTERCHANGEABLE
CONTROL ASSY,SEAT

Frequently Asked Questions

What is NSN 5325-00-197-2814?

NSN 5325-00-197-2814 is a Receptacle,turnlock Fastener, manufactured by Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company, classified under FSC 5325 (No Item Name Available). Status: active.

What are the part numbers for NSN 5325-00-197-2814?

NSN 5325-00-197-2814 has 4 cross-referenced part numbers: C393-4-4-2 (Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company), C393-4-4-2 (Sps Technologies, Llc Dba PB Fasteners), C393-4-4-2 (Howmet Global Fastening Systems Inc Div Torrance Operations), C393 (Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company).

What NSN replaces 5325-00-197-2814?

There are 2 known substitutes for 5325-00-197-2814: 3110-00-100-0642, 1680-00-133-6085. Verify interchangeability with system specifications before substitution.

What are the specifications of C393-4-4-2?

Key specifications for C393-4-4-2: Turnlock Receptacle Style: RECEPTACLE; Surface Treatment: CADMIUM AND CHROMATE OVERALL; Mounting Style: PLAIN W/MOUNTING HOLE; Material: STEEL COMP 1050 RETAINER. 17 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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