PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3173Washer,recessed

Roller Bearing Co of America, Inc Div Pic Design · NSN 5310-00-070-6672 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-070-6672 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-070-6672. Primary manufacturer part number: 3173.
Features
  • Washer,recessed — FSC 5310
  • Outside Diameter: 0.439 INCHES NOMINAL IN
  • Hole Diameter: 0.219 INCHES NOMINAL IN
  • Recess Angle: 45.0 DEGREES NOMINAL
  • Material Thickness: 0.250 INCHES NOMINAL IN
  • Style Designator: RECESSED
  • Material Document and Classification: MIL-S-7720 MIL SPEC 1ST MATERIAL RESPONSE OR ASTM A582 ASSN STD 2ND MATERIAL RESPONSE OVERALL
  • Surface Treatment: PASSIVATE OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Washer,recessed, cataloged under National Stock Number 5310-00-070-6672, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Roller Bearing Co of America, Inc Div Pic Design. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-070-6672
Primary Part Number3173
Item NameWasher,recessed
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerRoller Bearing Co of America, Inc Div Pic Design
StatusACTIVE
Outside Diameter0.439 INCHES NOMINAL IN
Hole Diameter0.219 INCHES NOMINAL IN
Recess Angle45.0 DEGREES NOMINAL
Material Thickness0.250 INCHES NOMINAL IN
Style DesignatorRECESSED
Material Document and ClassificationMIL-S-7720 MIL SPEC 1ST MATERIAL RESPONSE OR ASTM A582 ASSN STD 2ND MATERIAL RESPONSE OVERALL
Surface TreatmentPASSIVATE OVERALL
Recess Diameter0.312 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
6510-00-105-5807 INTERCHANGEABLE
Bandage,elastic
5945-00-257-8842 INTERCHANGEABLE
Relay,electromagnetic
3940-00-263-30793173 INTERCHANGEABLE
Adapter,hoisting
Allison Transmission Inc Dba Allison Transmission, Inc
2520-00-773-5470 INTERCHANGEABLE
Cover
5935-00-805-253731-73 INTERCHANGEABLE
Connector,receptacle,electrical
Te Connectivity Corporation Dba Microdot Products
5977-00-906-4048 INTERCHANGEABLE
Holder,electrical Contact Brush
5815-00-975-9732 INTERCHANGEABLE
Holder
5365-01-166-25933173 INTERCHANGEABLE
Plug,machine Thread
DP Manufacturing Inc.
5330-01-275-59423173 INTERCHANGEABLE
Seal,plain
Federal-Mogul Corp Government Sales Dept
5985-01-371-78893173 INTERCHANGEABLE
Coupler,antenna
Tech Resources, Inc
Cross-Reference Index
Part NumberManufacturer
SM-A-803658-1 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
3173 PRIMARY Roller Bearing Co of America, Inc Div Pic Design (USA)
Related Parts
6510-00-105-5807INTERCHANGEABLE
BANDAGE,ELASTIC
5945-00-257-8842INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
3940-00-263-3079INTERCHANGEABLE
ADAPTER,HOISTING
3173
2520-00-773-5470INTERCHANGEABLE
COVER
5935-00-805-2537INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
31-73
5977-00-906-4048INTERCHANGEABLE
HOLDER,ELECTRICAL CONTACT BRUSH
5815-00-975-9732INTERCHANGEABLE
HOLDER
5365-01-166-2593INTERCHANGEABLE
PLUG,MACHINE THREAD
3173
5330-01-275-5942INTERCHANGEABLE
SEAL,PLAIN
3173
5985-01-371-7889INTERCHANGEABLE
COUPLER,ANTENNA
3173
5940-01-562-6855INTERCHANGEABLE
HEATSINK ASSEMBLY
CA-3173R5

Frequently Asked Questions

What is NSN 5310-00-070-6672?

NSN 5310-00-070-6672 is a Washer,recessed, manufactured by Roller Bearing Co of America, Inc Div Pic Design, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-070-6672?

NSN 5310-00-070-6672 has 2 cross-referenced part numbers: SM-A-803658-1 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), 3173 (Roller Bearing Co of America, Inc Div Pic Design).

What NSN replaces 5310-00-070-6672?

There are 11 known substitutes for 5310-00-070-6672: 6510-00-105-5807, 5945-00-257-8842, 3940-00-263-3079 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3173?

Key specifications for 3173: Outside Diameter: 0.439 INCHES NOMINAL IN; Hole Diameter: 0.219 INCHES NOMINAL IN; Recess Angle: 45.0 DEGREES NOMINAL; Material Thickness: 0.250 INCHES NOMINAL IN. 8 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com