PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

203858Nut,self-Locking,hexagon

Austin-Westran Llc · NSN 5310-01-197-4435 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-197-4435 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-197-4435. Primary manufacturer part number: 203858.
Features
  • Nut,self-Locking,hexagon — FSC 5310
  • 4 verified cross-references
  • Primary manufacturer: Austin-Westran Llc
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-197-4435, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Austin-Westran Llc. This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameNut,self-Locking,hexagon
FSC / FSG5310 — No Item Name Available (FSG 53)
ManufacturersEsna, Llc (CAGE 019L2); Austin-Westran Llc (CAGE 24234); Harvard Industries Inc (CAGE 72962); Bergstrom Inc (CAGE 99688)
Technical Specifications
ParameterValue
NSN5310-01-197-4435
Primary Part Number203858
Item NameNut,self-Locking,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerAustin-Westran Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5330-00-083-74502038-5-8 INTERCHANGEABLE
Retainer,packing
Flowserve Corporation Div Flowserve Us Inc
3750-00-481-344762221 INTERCHANGEABLE
Mower,lawn,power
Textron Inc Jacobsen Div
5815-00-602-2782SM-C-426564 INTERCHANGEABLE
Bar,t,teletypewriter
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5940-01-021-9934KA36U INTERCHANGEABLE
Terminal,lug
Burndy Llc
Cross-Reference Index
Part NumberManufacturer
79NE1420 Esna, Llc (USA)
203858 PRIMARY Austin-Westran Llc (USA)
79NE1420 Harvard Industries Inc (USA)
62219 Bergstrom Inc (USA)
Related Parts
5330-00-083-7450INTERCHANGEABLE
RETAINER,PACKING
2038-5-8
3750-00-481-3447INTERCHANGEABLE
MOWER,LAWN,POWER
62221
5815-00-602-2782INTERCHANGEABLE
BAR,T,TELETYPEWRITER
SM-C-426564
5940-01-021-9934INTERCHANGEABLE
TERMINAL,LUG
KA36U

Frequently Asked Questions

What is NSN 5310-01-197-4435?

NSN 5310-01-197-4435 is a Nut,self-Locking,hexagon, manufactured by Austin-Westran Llc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-197-4435?

NSN 5310-01-197-4435 has 4 cross-referenced part numbers: 79NE1420 (Esna, Llc), 203858 (Austin-Westran Llc), 79NE1420 (Harvard Industries Inc), 62219 (Bergstrom Inc).

What NSN replaces 5310-01-197-4435?

There are 4 known substitutes for 5310-01-197-4435: 5330-00-083-7450, 3750-00-481-3447, 5815-00-602-2782 and 1 more. Verify interchangeability with system specifications before substitution.

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