PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NAS1288-3WWasher,concave

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5310-00-435-5839 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-435-5839 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-435-5839. Primary manufacturer part number: NAS1288-3W.
Features
  • Washer,concave — FSC 5310
  • Hole Diameter: 0.230 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN
  • Specification/standard Data: 80205-NAS1288 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Material Document and Classification: AMS6304 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Radius: 0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN
  • Material Thickness: 0.045 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
  • Style Designator: CONCAVE
  • Material: STEEL OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,concave, cataloged under National Stock Number 5310-00-435-5839, 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 3 commercial cross-references from 3 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
NSN5310-00-435-5839
Primary Part NumberNAS1288-3W
Item NameWasher,concave
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNational Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
StatusACTIVE
Hole Diameter0.230 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN
Specification/standard Data80205-NAS1288 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Material Document and ClassificationAMS6304 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Radius0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN
Material Thickness0.045 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
Style DesignatorCONCAVE
MaterialSTEEL OVERALL
Hardness Rating41.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM
Outside Diameter0.365 INCHES MAXIMUM IN
Recess Depth0.035 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5950-00-500-2707213307-4 INTERCHANGEABLE
Transformer,power
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
6685-00-605-069940840 INTERCHANGEABLE
Thermostat,flow Control
Aeroil Products Co Inc
5310-00-685-329115163P INTERCHANGEABLE
Nut,plain,round
Curtiss-Wright Electro-Mechanical Corporation Div Epd
5962-01-110-1614 INTERCHANGEABLE
Microcircuit
3120-01-138-5350 INTERCHANGEABLE
Bushing,sleeve
4940-01-185-180140840 INTERCHANGEABLE
Holder,maintenance Fixture,multi
Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc
9540-01-296-912440840 INTERCHANGEABLE
Structural Section,special Shape
Aluminum Co of America
6550-01-641-641740840 INTERCHANGEABLE
Platelet Diluting Solution
Terumo Bct Inc Dba Caridianbct Inc
Cross-Reference Index
Part NumberManufacturer
4084-0 Esna, Llc (USA)
4084-0 Harvard Industries Inc (USA)
NAS1288-3W PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
Related Parts
5950-00-500-2707INTERCHANGEABLE
TRANSFORMER,POWER
213307-4
6685-00-605-0699INTERCHANGEABLE
THERMOSTAT,FLOW CONTROL
40840
5310-00-685-3291INTERCHANGEABLE
NUT,PLAIN,ROUND
15163P
5962-01-110-1614INTERCHANGEABLE
MICROCIRCUIT
3120-01-138-5350INTERCHANGEABLE
BUSHING,SLEEVE
4940-01-185-1801INTERCHANGEABLE
HOLDER,MAINTENANCE FIXTURE,MULTI
40840
9540-01-296-9124INTERCHANGEABLE
STRUCTURAL SECTION,SPECIAL SHAPE
40840
6550-01-641-6417INTERCHANGEABLE
PLATELET DILUTING SOLUTION
40840

Frequently Asked Questions

What is NSN 5310-00-435-5839?

NSN 5310-00-435-5839 is a Washer,concave, 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 5310-00-435-5839?

NSN 5310-00-435-5839 has 3 cross-referenced part numbers: 4084-0 (Esna, Llc), 4084-0 (Harvard Industries Inc), NAS1288-3W (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use).

What NSN replaces 5310-00-435-5839?

There are 8 known substitutes for 5310-00-435-5839: 5950-00-500-2707, 6685-00-605-0699, 5310-00-685-3291 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of NAS1288-3W?

Key specifications for NAS1288-3W: Hole Diameter: 0.230 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN; Specification/standard Data: 80205-NAS1288 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Material Document and Classification: AMS6304 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Radius: 0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN. 10 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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