PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21201Nut,plain,hexagon

Dresser, Llc · NSN 5310-00-282-9542 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-282-9542 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-282-9542. Primary manufacturer part number: 21201.
Features
  • Nut,plain,hexagon — FSC 5310
  • Width Across Flats: 0.688 INCHES NOMINAL IN
  • Thread Series: UNF
  • Bearing Surface Type: CHAMFERED OR WASHER FACED
  • Thread Quantity Per Inch: 20
  • Nominal Thread Size: 0.438 INCHES IN
  • Thread Class: 3B
  • Thread Direction: RIGHT-HAND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-282-9542, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Dresser, Llc. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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
NSN5310-00-282-9542
Primary Part Number21201
Item NameNut,plain,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerDresser, Llc
StatusACTIVE
Width Across Flats0.688 INCHES NOMINAL IN
Thread SeriesUNF
Bearing Surface TypeCHAMFERED OR WASHER FACED
Thread Quantity Per Inch20
Nominal Thread Size0.438 INCHES IN
Thread Class3B
Thread DirectionRIGHT-HAND
Nut Height0.375 INCHES NOMINAL IN
Nut StyleHEXAGON
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5975-00-267-277697T075 INTERCHANGEABLE
Coupling,electrical Conduit
Egs Electrical Group Appleton Div
5310-00-486-521421201 INTERCHANGEABLE
Nut,plain,hexagon
Falls Filtration Technologies, Inc.
2915-00-931-296521201 INTERCHANGEABLE
Cover,relief Valve
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
4510-01-116-16192120-1 INTERCHANGEABLE
Holder,water Tumbler
Charles a Starr Company Inc Dba Charles a Starr Company Inc
3040-01-188-326121201 INTERCHANGEABLE
Weight,counterbalance
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
4720-01-246-804121201 INTERCHANGEABLE
Hose,preformed
Gates Corporation
5330-01-350-046721201 INTERCHANGEABLE
Gasket
Hf Scientific Inc.
4820-01-417-940721201-1004-1 INTERCHANGEABLE
Piston,valve
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
4820-01-418-004321201-001 INTERCHANGEABLE
Valve,linear,directional Control
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
3040-01-424-261221201-1005-1 INTERCHANGEABLE
Shaft,shouldered
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
Cross-Reference Index
Part NumberManufacturer
21201 PRIMARY Dresser, Llc (USA)
21201 Dresser Industries Inc Waukesha Engine Div (USA)
Related Parts
5975-00-267-2776INTERCHANGEABLE
COUPLING,ELECTRICAL CONDUIT
97T075
5310-00-486-5214INTERCHANGEABLE
NUT,PLAIN,HEXAGON
21201
2915-00-931-2965INTERCHANGEABLE
COVER,RELIEF VALVE
21201
4510-01-116-1619INTERCHANGEABLE
HOLDER,WATER TUMBLER
2120-1
3040-01-188-3261INTERCHANGEABLE
WEIGHT,COUNTERBALANCE
21201
4720-01-246-8041INTERCHANGEABLE
HOSE,PREFORMED
21201
5330-01-350-0467INTERCHANGEABLE
GASKET
21201
4820-01-417-9407INTERCHANGEABLE
PISTON,VALVE
21201-1004-1
4820-01-418-0043INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
21201-001
3040-01-424-2612INTERCHANGEABLE
SHAFT,SHOULDERED
21201-1005-1
2590-01-439-9430INTERCHANGEABLE
CAP,FILLER OPENING
2120-1
5360-01-624-4406INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
21-201

Frequently Asked Questions

What is NSN 5310-00-282-9542?

NSN 5310-00-282-9542 is a Nut,plain,hexagon, manufactured by Dresser, Llc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-282-9542?

NSN 5310-00-282-9542 has 2 cross-referenced part numbers: 21201 (Dresser, Llc), 21201 (Dresser Industries Inc Waukesha Engine Div).

What NSN replaces 5310-00-282-9542?

There are 12 known substitutes for 5310-00-282-9542: 5975-00-267-2776, 5310-00-486-5214, 2915-00-931-2965 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21201?

Key specifications for 21201: Width Across Flats: 0.688 INCHES NOMINAL IN; Thread Series: UNF; Bearing Surface Type: CHAMFERED OR WASHER FACED; Thread Quantity Per Inch: 20. 10 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com