PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C6937-4Nut,plain,hexagon

Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company · NSN 5310-00-538-7190 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-538-7190 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-538-7190. Primary manufacturer part number: C6937-4.
Features
  • Nut,plain,hexagon — FSC 5310
  • Thread Series: UNIFIED NATIONAL COARSE (UNC)
  • Bearing Surface Type: CHAMFERED
  • Nominal Thread Size: 0.164 INCHES IN
  • Thread Quantity Per Inch: 32
  • Width Across Flats: 0.344 INCHES NOMINAL IN
  • Thread Class: 2B
  • Nut Style: HEXAGON
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Plastic Polyamide Nylon Overall construction
General Description

The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-538-7190, is classified within Federal Supply Class 5310 (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 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-538-7190
Primary Part NumberC6937-4
Item NameNut,plain,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Lockheed Martin Aeronautics Company
StatusACTIVE
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Bearing Surface TypeCHAMFERED
Nominal Thread Size0.164 INCHES IN
Thread Quantity Per Inch32
Width Across Flats0.344 INCHES NOMINAL IN
Thread Class2B
Nut StyleHEXAGON
Thread DirectionRIGHT-HAND
Nut Height0.125 INCHES NOMINAL IN
MaterialPLASTIC POLYAMIDE NYLON OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
6640-00-403-100013500 5 INTERCHANGEABLE
Bead,laboratory
Gerresheimer Glass Inc Div Gerresheimer Glass
5999-00-491-12897069743-01 INTERCHANGEABLE
Heat Sink,electrical-Electronic
Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan
6680-00-704-3693103103-004 INTERCHANGEABLE
Counter,electrical
Dynapar Corp Div Specialty Product Technologies
6510-00-786-37366818- INTERCHANGEABLE
Pad,isopropyl Alcohol Impregnate
Cardinal Health 200, Llc
1680-00-808-4229695694-5 INTERCHANGEABLE
Shaft Assembly,flexible
Cef Industries Inc Flexible Shaft Div
5910-00-885-8980103103 INTERCHANGEABLE
Capacitor,fixed,plastic Dielectr
Honeywell Inc Residential Div
4820-01-305-8989 INTERCHANGEABLE
Nozzle,valve
3120-01-449-89929314A02-2115 INTERCHANGEABLE
Bearing,washer,thrust
Bunting Bearings Corp
5905-01-462-853610-3103 INTERCHANGEABLE
Resistor,variable,nonwire Wound,
L3 Technologies, Inc.
3010-01-668-9823103103 INTERCHANGEABLE
Torque Limiter Assembly,mechanic
Tim Price Inc. Dba Tim Price Inc
Cross-Reference Index
Part NumberManufacturer
C6937-4 Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company (USA)
103103 Federal Screw Products, Inc. (USA)
103103ADX Airdale Express Llc Div Airdale Express (USA)
8-32 Albany Fasteners Pawtucket Fasteners Div (USA)
Related Parts
6640-00-403-1000INTERCHANGEABLE
BEAD,LABORATORY
13500 5
5999-00-491-1289INTERCHANGEABLE
HEAT SINK,ELECTRICAL-ELECTRONIC
7069743-01
6680-00-704-3693INTERCHANGEABLE
COUNTER,ELECTRICAL
103103-004
6510-00-786-3736INTERCHANGEABLE
PAD,ISOPROPYL ALCOHOL IMPREGNATE
6818-
1680-00-808-4229INTERCHANGEABLE
SHAFT ASSEMBLY,FLEXIBLE
695694-5
5910-00-885-8980INTERCHANGEABLE
CAPACITOR,FIXED,PLASTIC DIELECTR
103103
4820-01-305-8989INTERCHANGEABLE
NOZZLE,VALVE
3120-01-449-8992INTERCHANGEABLE
BEARING,WASHER,THRUST
9314A02-2115
5905-01-462-8536INTERCHANGEABLE
RESISTOR,VARIABLE,NONWIRE WOUND,
10-3103
3010-01-668-9823INTERCHANGEABLE
TORQUE LIMITER ASSEMBLY,MECHANIC
103103

Frequently Asked Questions

What is NSN 5310-00-538-7190?

NSN 5310-00-538-7190 is a Nut,plain,hexagon, manufactured by Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-538-7190?

NSN 5310-00-538-7190 has 4 cross-referenced part numbers: C6937-4 (Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company), 103103 (Federal Screw Products, Inc.), 103103ADX (Airdale Express Llc Div Airdale Express), 8-32 (Albany Fasteners Pawtucket Fasteners Div).

What NSN replaces 5310-00-538-7190?

There are 10 known substitutes for 5310-00-538-7190: 6640-00-403-1000, 5999-00-491-1289, 6680-00-704-3693 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of C6937-4?

Key specifications for C6937-4: Thread Series: UNIFIED NATIONAL COARSE (UNC); Bearing Surface Type: CHAMFERED; Nominal Thread Size: 0.164 INCHES IN; Thread Quantity Per Inch: 32. 10 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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