PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

403416Nut,self-Locking,hexagon

Crysteel Manufacturing, Inc Dba Crysteel Manufacturing Inc · NSN 5310-00-935-9021 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-935-9021 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-935-9021. Primary manufacturer part number: 403416.
Features
  • Nut,self-Locking,hexagon — FSC 5310
  • Nut Style: HEXAGON
  • Material: PLASTIC POLYAMIDE NYLON LOCKING INSERT
  • Material: STEEL NUT
  • Lubrication: DRY FILM LUBRICANT
  • Bearing Surface Finish: 110.0 MICROINCHES
  • Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT
  • Bearing Surface Type: CHAMFERED OR WASHER FACED
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Plastic Polyamide Nylon Locking Insert construction
General Description

The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-00-935-9021, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Crysteel Manufacturing, Inc Dba Crysteel Manufacturing Inc. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 12 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-935-9021
Primary Part Number403416
Item NameNut,self-Locking,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerCrysteel Manufacturing, Inc Dba Crysteel Manufacturing Inc
StatusCANCELLED
Nut StyleHEXAGON
MaterialPLASTIC POLYAMIDE NYLON LOCKING INSERT
MaterialSTEEL NUT
LubricationDRY FILM LUBRICANT
Bearing Surface Finish110.0 MICROINCHES
Surface Treatment Document and ClassificationQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT
Bearing Surface TypeCHAMFERED OR WASHER FACED
Nominal Thread Size0.375 INCHES IN
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Temp Rating250.0 FAHRENHEIT NOMINAL DEGF
Thread Quantity Per Inch16
Thread Class3B
Locking FeaturePREVAILING TORQUE ALL METAL DESIGN OR PREVAILING TORQUE WITH NONMETALLIC INSERT
Surface TreatmentCADMIUM OVERALL EXCEPT INSERT
Nut Height0.469 INCHES MAXIMUM IN
Width Across Flats0.551 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Hardness Rating26.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
5310-00-050-327552NU066 INTERCHANGEABLE
Nut,self-Locking,hexagon
Esna, Llc
5950-00-646-8632C116T35 INTERCHANGEABLE
Transformer,power
Avtron Aerospace Inc
2520-00-702-4578 INTERCHANGEABLE
Parts Kit,universal Joint
3010-00-860-710211050-43A2 INTERCHANGEABLE
Gearcase-Motor
Ellis & Watts International, Llc
5310-01-222-90973011456 INTERCHANGEABLE
Nut,self-Locking,hexagon
Motor City Fasteners Inc
5310-01-509-2488 INTERCHANGEABLE
Nut,self-Locking,hexagon
9905-01-715-1288403416 INTERCHANGEABLE
Flag,marking
Colt's Manufacturing Company, Llc
Cross-Reference Index
Part NumberManufacturer
403416 Crysteel Manufacturing, Inc Dba Crysteel Manufacturing Inc (USA)
8KP182 Oshkosh Defense Llc (USA)
8100019 Cummins Inc. (USA)
10396618 Nimikkeistokeskus Ncb Finland (FIN)
5310009359021 E.c.a Etablissement Centrald'approvisionnement Des Forces Armee
8KP182 Oshkosh Corp (USA)
5590234 Am General Llc (USA)
TIP00029 Cecom Lr Center (USA)
52NU066 Hardie-Tynes Co., Inc. (USA)
0274993 Ed Etnyre & Co (USA)
MS51943-35 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
5310PL0656698 Jednolity Indeks Materialowy - Uniform Material Index (POL)
Related Parts
5310-00-050-3275INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
52NU066
5950-00-646-8632INTERCHANGEABLE
TRANSFORMER,POWER
C116T35
2520-00-702-4578INTERCHANGEABLE
PARTS KIT,UNIVERSAL JOINT
3010-00-860-7102INTERCHANGEABLE
GEARCASE-MOTOR
11050-43A2
5310-01-222-9097INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
3011456
5310-01-509-2488INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
9905-01-715-1288INTERCHANGEABLE
FLAG,MARKING
403416

Frequently Asked Questions

What is NSN 5310-00-935-9021?

NSN 5310-00-935-9021 is a Nut,self-Locking,hexagon, manufactured by Crysteel Manufacturing, Inc Dba Crysteel Manufacturing Inc, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-935-9021?

NSN 5310-00-935-9021 has 12 cross-referenced part numbers: 403416 (Crysteel Manufacturing, Inc Dba Crysteel Manufacturing Inc), 8KP182 (Oshkosh Defense Llc), 8100019 (Cummins Inc.), 10396618 (Nimikkeistokeskus Ncb Finland), 5310009359021 (E.c.a Etablissement Centrald'approvisionnement Des Forces Armee) and 7 more.

What NSN replaces 5310-00-935-9021?

There are 7 known substitutes for 5310-00-935-9021: 5310-00-050-3275, 5950-00-646-8632, 2520-00-702-4578 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 403416?

Key specifications for 403416: Nut Style: HEXAGON; Material: PLASTIC POLYAMIDE NYLON LOCKING INSERT; Material: STEEL NUT; Lubrication: DRY FILM LUBRICANT. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-935-9021 still in active supply?

NSN 5310-00-935-9021 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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