PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NAS1149C0363RWasher,flat

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5310-01-352-9575 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-352-9575 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-352-9575. Primary manufacturer part number: NAS1149C0363R.
Features
  • Washer,flat — FSC 5310
  • Center Hole Shape Style: ROUND
  • Material: STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 316 OR STEEL COMP 321 OR STEEL COMP 347 OVERALL
  • Cross-Sectional Shape Style: RECTANGULAR
  • Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Specification/standard Data: 80205-NAS1149 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Surface Treatment: PASSIVATE OVERALL
  • Thickness: 0.057 INCHES MINIMUM AND 0.069 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 301 or Steel Comp 302 or Steel Comp 304 or Steel Comp 316 or Steel Comp 321 or Steel Comp 347 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-01-352-9575, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-352-9575
Primary Part NumberNAS1149C0363R
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNational Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
StatusACTIVE
Center Hole Shape StyleROUND
MaterialSTEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 316 OR STEEL COMP 321 OR STEEL COMP 347 OVERALL
Cross-Sectional Shape StyleRECTANGULAR
Surface Treatment Document and ClassificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Specification/standard Data80205-NAS1149 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Surface TreatmentPASSIVATE OVERALL
Thickness0.057 INCHES MINIMUM AND 0.069 INCHES MAXIMUM IN
Peripheral Shape StyleROUND
Hole Diameter0.193 INCHES MINIMUM AND 0.213 INCHES MAXIMUM IN
Overall Diameter0.433 INCHES MINIMUM AND 0.458 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5331-01-418-6766920430 INTERCHANGEABLE
O-Ring
Clark Material Handling Company
5310-01-463-8827AN960C10 INTERCHANGEABLE
Washer,flat,aircraf
Rolls Royce Corp
5310-01-721-3137 INTERCHANGEABLE
Washer,flat
Cross-Reference Index
Part NumberManufacturer
NAS1149C0363R Leonardo Spa Helicopters Division - Production Site (ITA)
NAS1149C0363R Tecno Trade S.r.l. (ITA)
10122235 Nimikkeistokeskus Ncb Finland (FIN)
ASNA2397C10 Airbus Operations (FRA)
5310013529575 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
NAS1149C0363R PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
5310PL0198130 Jednolity Indeks Materialowy - Uniform Material Index (POL)
953074 Safran Aerosystems (FRA)
920430 L3 Technologies, Inc. Div L3 Keo (USA)
NAS1149C0363R Leonardo Uk Ltd (GBR)
Related Parts
5331-01-418-6766INTERCHANGEABLE
O-RING
920430
5310-01-463-8827INTERCHANGEABLE
WASHER,FLAT,AIRCRAF
AN960C10
5310-01-721-3137INTERCHANGEABLE
WASHER,FLAT

Frequently Asked Questions

What is NSN 5310-01-352-9575?

NSN 5310-01-352-9575 is a Washer,flat, manufactured by National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-352-9575?

NSN 5310-01-352-9575 has 10 cross-referenced part numbers: NAS1149C0363R (Leonardo Spa Helicopters Division - Production Site), NAS1149C0363R (Tecno Trade S.r.l.), 10122235 (Nimikkeistokeskus Ncb Finland), ASNA2397C10 (Airbus Operations), 5310013529575 (E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales) and 5 more.

What NSN replaces 5310-01-352-9575?

There are 3 known substitutes for 5310-01-352-9575: 5331-01-418-6766, 5310-01-463-8827, 5310-01-721-3137. Verify interchangeability with system specifications before substitution.

What are the specifications of NAS1149C0363R?

Key specifications for NAS1149C0363R: Center Hole Shape Style: ROUND; Material: STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 316 OR STEEL COMP 321 OR STEEL COMP 347 OVERALL; Cross-Sectional Shape Style: RECTANGULAR; End Item Identification: MRAP BUFFALO MK2A2; MRAP - COUGAR CAT1 A2; MRAP - M-ATV DV178; MULTIPLE LAUNCH ROCKET SYSTEM (MLRS); ARMORED MULTI-PURPOSE VEHICLE (AMPV); HIGH-MOBILITY ARTILLERY ROCKET SYSTEM (HIMARS). 11 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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