PartsTable TECHNICAL DATA SHEET
NSN 5310-01-191-0458Government record, cited

Washer, Recessed5310-01-191-0458

NSN 5310-01-191-0458 · NIIN 011910458 · Part number 731A0011F051A
Circor Naval Solutions Llc Dba Warren Pumps · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 63857
Government record, cited
NSN 5310-01-191-0458 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-191-0458. Manufacturer of record part number: 731A0011F051A.
Also searched as  5310-01-191-0458 · 5310011910458 · NIIN 011910458 · 01-191-0458 · FSC 5310 Nuts and Washers · CAGE 63857 · 731A0011F051A · 999R0182 PC 24
Nearby stock numbers  ·
Features
  • Washer,recessed — FSC 5310
  • Style Designator: RECESSED
  • Outside Diameter: 2.000 INCHES NOMINAL IN
  • Recess Depth: 0.188 INCHES MINIMUM AND 0.191 INCHES MAXIMUM IN
  • Recess Diameter: 1.697 INCHES MINIMUM AND 1.699 INCHES MAXIMUM IN
  • Hole Diameter: 1.182 INCHES MINIMUM AND 1.183 INCHES MAXIMUM IN
  • 2 manufacturer part numbers on file
  • Manufacturer of record: Circor Naval Solutions Llc Dba Warren Pumps
Identification
  • NSN: 5310-01-191-0458
  • NIIN: 011910458
  • FSC: 5310 — Nuts and Washers
  • FSG: 53 — Hardware and Abrasives
  • Primary part number: 731A0011F051A
  • Manufacturer: Circor Naval Solutions Llc Dba Warren Pumps
General Description

The Washer,recessed, cataloged under National Stock Number 5310-01-191-0458, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Circor Naval Solutions Llc Dba Warren Pumps. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-191-0458
Primary Part Number731A0011F051A
Item NameWasher,recessed
FSC / FSG5310 / 53 — Nuts and Washers
ManufacturerCircor Naval Solutions Llc Dba Warren Pumps
StatusACTIVE
Style DesignatorRECESSED
Outside Diameter2.000 INCHES NOMINAL IN
Recess Depth0.188 INCHES MINIMUM AND 0.191 INCHES MAXIMUM IN
Recess Diameter1.697 INCHES MINIMUM AND 1.699 INCHES MAXIMUM IN
Hole Diameter1.182 INCHES MINIMUM AND 1.183 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
731A0011F051A PRIMARY Circor Naval Solutions Llc Dba Warren Pumps (USA)
999R0182 PC 24 PRIMARY Circor Naval Solutions Llc Dba Warren Pumps (USA)
No interchangeability data on file.
Other items in FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040
5310-00-000-0040 · Item name not on file
5310-00-000-0077
NUT,PLAIN,ROUND
5310-00-000-0079
WASHER,FLAT
5310-00-000-0079
WASHER,FLAT
5310-00-000-1146
5310-00-000-1146 · Item name not on file
5310-00-000-3815
5310-00-000-3815 · Item name not on file
5310-00-000-4532
5310-00-000-4532 · Item name not on file
5310-00-000-4540
5310-00-000-4540 · Item name not on file

Frequently Asked Questions

What is NSN 5310-01-191-0458?

NSN 5310-01-191-0458 is a Washer,recessed, manufactured by Circor Naval Solutions Llc Dba Warren Pumps, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-191-0458?

NSN 5310-01-191-0458 has 2 manufacturer part numbers on file: 731A0011F051A (Circor Naval Solutions Llc Dba Warren Pumps), 999R0182 PC 24 (Circor Naval Solutions Llc Dba Warren Pumps).

What are the specifications of 731A0011F051A?

Key specifications for 731A0011F051A: Overall Height: 0.438 INCHES NOMINAL IN; Style Designator: RECESSED; Outside Diameter: 2.000 INCHES NOMINAL IN; Recess Depth: 0.188 INCHES MINIMUM AND 0.191 INCHES MAXIMUM IN. 5 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-191-0458 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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