PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

361621Nut,self-Locking,hexagon

Ford Motor Company · NSN 5310-00-050-3377 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-050-3377 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-050-3377. Primary manufacturer part number: 361621.
Features
  • Nut,self-Locking,hexagon — FSC 5310
  • Nominal Thread Size: 0.250 INCHES IN
  • Thread Quantity Per Inch: 28
  • Thread Series: UNF
  • Locking Feature: FREE-RUNNING ALL METAL DESIGN
  • Nut Height: 0.312 INCHES NOMINAL IN
  • Material: STEEL OVERALL
  • Thread Direction: RIGHT-HAND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-00-050-3377, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Ford Motor Company. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-050-3377
Primary Part Number361621
Item NameNut,self-Locking,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerFord Motor Company
StatusACTIVE
Nominal Thread Size0.250 INCHES IN
Thread Quantity Per Inch28
Thread SeriesUNF
Locking FeatureFREE-RUNNING ALL METAL DESIGN
Nut Height0.312 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Thread DirectionRIGHT-HAND
Material Document and ClassificationQQ-S-633-CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Width Across Flats0.438 INCHES NOMINAL IN
Surface TreatmentCADMIUM OR ZINC OVERALL
Thread Class3B
Nut StyleHEXAGON
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5905-00-088-87217162 INTERCHANGEABLE
Resistor,variable,nonwire Wound,
Rockwell Automation, Inc. Dba Rockwell Automation
5510-00-243-9146PF25 INTERCHANGEABLE
Crossarm,wood
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5935-00-376-78997162 INTERCHANGEABLE
Connector,plug,electrical
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
5935-00-665-7564 INTERCHANGEABLE
Connector,plug,electrical
4820-00-739-34541279324 INTERCHANGEABLE
Valve,flow Control
Naval Ship Systems Command
5305-00-754-3183 INTERCHANGEABLE
Screw,machine
5996-00-905-39717162 INTERCHANGEABLE
Amplifier,radio Frequency
Drs Signal Solutions, Inc.
4720-00-922-0032 INTERCHANGEABLE
Hose,air Duct
5330-00-958-2863 INTERCHANGEABLE
Seal,plain Encased
5340-00-993-8495F2NY-437-0 INTERCHANGEABLE
Clamp,loop
Brady United States
Cross-Reference Index
Part NumberManufacturer
361621 Ford Motor Company (USA)
7162 Sasco Inc Canadian Div
190204 General Motors Corp (USA)
190204 General Motors Llc Dba General Motors Llc (USA)
361621 Ford Motor Co Ford Parts and Service Div Government Part Sales (USA)
361621S7S8 Ford Motor Company (USA)
361621S7S8 Ford Motor Co Ford Parts and Service Div Government Part Sales (USA)
Related Parts
5905-00-088-8721INTERCHANGEABLE
RESISTOR,VARIABLE,NONWIRE WOUND,
7162
5510-00-243-9146INTERCHANGEABLE
CROSSARM,WOOD
PF25
5935-00-376-7899INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
7162
5935-00-665-7564INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
4820-00-739-3454INTERCHANGEABLE
VALVE,FLOW CONTROL
1279324
5305-00-754-3183INTERCHANGEABLE
SCREW,MACHINE
5996-00-905-3971INTERCHANGEABLE
AMPLIFIER,RADIO FREQUENCY
7162
4720-00-922-0032INTERCHANGEABLE
HOSE,AIR DUCT
5330-00-958-2863INTERCHANGEABLE
SEAL,PLAIN ENCASED
5340-00-993-8495INTERCHANGEABLE
CLAMP,LOOP
F2NY-437-0
6515-01-004-8575INTERCHANGEABLE
BAG,OSTOMY
4320-01-130-7289INTERCHANGEABLE
PISTON,PUMP

Frequently Asked Questions

What is NSN 5310-00-050-3377?

NSN 5310-00-050-3377 is a Nut,self-Locking,hexagon, manufactured by Ford Motor Company, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-050-3377?

NSN 5310-00-050-3377 has 7 cross-referenced part numbers: 361621 (Ford Motor Company), 7162 (Sasco Inc Canadian Div), 190204 (General Motors Corp), 190204 (General Motors Llc Dba General Motors Llc), 361621 (Ford Motor Co Ford Parts and Service Div Government Part Sales) and 2 more.

What NSN replaces 5310-00-050-3377?

There are 12 known substitutes for 5310-00-050-3377: 5905-00-088-8721, 5510-00-243-9146, 5935-00-376-7899 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 361621?

Key specifications for 361621: Nominal Thread Size: 0.250 INCHES IN; Thread Quantity Per Inch: 28; Thread Series: UNF; Locking Feature: FREE-RUNNING ALL METAL DESIGN. 12 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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