PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NW21810Nut,plain,wing

Tld Wollard Llc · NSN 5310-01-049-0471 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-049-0471 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-049-0471. Primary manufacturer part number: NW21810.
Features
  • Nut,plain,wing — FSC 5310
  • Surface Treatment: ZINC OVERALL
  • Material Document and Classification: MS-66 MFR REF SINGLE MATERIAL RESPONSE OR MS-67,FSCM 74865 MFR REF SINGLE MATERIAL RESPONSE OVERALL
  • Surface Treatment Document and Classification: PS-79 CODE 15 MFR REF SINGLE TREATMENT RESPONSE OR PS-1536 CODE 25,FSCM 74865 MFR REF SINGLE TREATMENT RESPONSE OVERALL
  • Material: STEEL OVERALL
  • Nut Style: WING
  • Body Diameter: 0.620 INCHES MINIMUM AND 0.700 INCHES MAXIMUM IN
  • Nominal Thread Size: 0.312 INCHES IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Nut,plain,wing, cataloged under National Stock Number 5310-01-049-0471, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Tld Wollard Llc. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-049-0471
Primary Part NumberNW21810
Item NameNut,plain,wing
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerTld Wollard Llc
StatusACTIVE
Surface TreatmentZINC OVERALL
Material Document and ClassificationMS-66 MFR REF SINGLE MATERIAL RESPONSE OR MS-67,FSCM 74865 MFR REF SINGLE MATERIAL RESPONSE OVERALL
Surface Treatment Document and ClassificationPS-79 CODE 15 MFR REF SINGLE TREATMENT RESPONSE OR PS-1536 CODE 25,FSCM 74865 MFR REF SINGLE TREATMENT RESPONSE OVERALL
MaterialSTEEL OVERALL
Nut StyleWING
Body Diameter0.620 INCHES MINIMUM AND 0.700 INCHES MAXIMUM IN
Nominal Thread Size0.312 INCHES IN
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Thread Quantity Per Inch18
Thread DirectionRIGHT-HAND
Fabrication MethodSTAMPED
Thread Class2B
Wing Spread Width1.240 INCHES MINIMUM AND 1.300 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
6685-00-143-4746PT109 INTERCHANGEABLE
Thermometer,self-Indicating
Sigma Products & Mfg
5325-00-818-252721810 INTERCHANGEABLE
Ring,retaining
Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect
3110-01-007-762621810 INTERCHANGEABLE
Ball,bearing
Mason Electric Co. Dba Mason Controls
5985-01-036-6214218-10 INTERCHANGEABLE
Attenuator,fixed
Cinch Connectivity Solutions Inc
5961-01-169-6507 INTERCHANGEABLE
Transistor
5950-01-210-106921810 INTERCHANGEABLE
Reactor
Westerbeke Corporation
4720-01-374-413621810 INTERCHANGEABLE
Hose,preformed
Gates Corporation
5945-01-499-851621-810 INTERCHANGEABLE
Relay,hybrid
Te Connectivity Corporation
Cross-Reference Index
Part NumberManufacturer
NW21810 PRIMARY Tld Wollard Llc (USA)
148313 Atwood Fence Co Inc (USA)
21810 Tld Wollard Llc (USA)
Related Parts
6685-00-143-4746INTERCHANGEABLE
THERMOMETER,SELF-INDICATING
PT109
5325-00-818-2527INTERCHANGEABLE
RING,RETAINING
21810
3110-01-007-7626INTERCHANGEABLE
BALL,BEARING
21810
5985-01-036-6214INTERCHANGEABLE
ATTENUATOR,FIXED
218-10
5961-01-169-6507INTERCHANGEABLE
TRANSISTOR
5950-01-210-1069INTERCHANGEABLE
REACTOR
21810
4720-01-374-4136INTERCHANGEABLE
HOSE,PREFORMED
21810
5945-01-499-8516INTERCHANGEABLE
RELAY,HYBRID
21-810

Frequently Asked Questions

What is NSN 5310-01-049-0471?

NSN 5310-01-049-0471 is a Nut,plain,wing, manufactured by Tld Wollard Llc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-049-0471?

NSN 5310-01-049-0471 has 3 cross-referenced part numbers: NW21810 (Tld Wollard Llc), 148313 (Atwood Fence Co Inc), 21810 (Tld Wollard Llc).

What NSN replaces 5310-01-049-0471?

There are 8 known substitutes for 5310-01-049-0471: 6685-00-143-4746, 5325-00-818-2527, 3110-01-007-7626 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of NW21810?

Key specifications for NW21810: Surface Treatment: ZINC OVERALL; Material Document and Classification: MS-66 MFR REF SINGLE MATERIAL RESPONSE OR MS-67,FSCM 74865 MFR REF SINGLE MATERIAL RESPONSE OVERALL; Surface Treatment Document and Classification: PS-79 CODE 15 MFR REF SINGLE TREATMENT RESPONSE OR PS-1536 CODE 25,FSCM 74865 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Material: STEEL OVERALL. 14 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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