NSN 5310-01-050-1523 · NIIN 010501523 · Part number 90700-4
Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 28968
Government record, cited
NSN 5310-01-050-1523 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-050-1523. Manufacturer of record part number: 90700-4.
Also searched as5310-01-050-1523 ·
5310010501523 ·
NIIN 010501523 ·
01-050-1523 ·
FSC 5310 Nuts and Washers · CAGE 28968 · 90700-4
Overall Diameter: 0.380 INCHES MINIMUM AND 0.382 INCHES MAXIMUM IN
Material Document and Classification: QQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Cross-Sectional Shape Style: RECTANGULAR
Peripheral Shape Style: ROUND
Material: NICKEL ALLOY OVERALL
Center Hole Shape Style: ROUND
Hole Diameter: 0.226 INCHES MINIMUM AND 0.228 INCHES MAXIMUM IN
Identification
NSN: 5310-01-050-1523
NIIN: 010501523
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 90700-4
Manufacturer: Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok
General Description
The Washer,flat, cataloged under National Stock Number 5310-01-050-1523, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 9 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5310-01-050-1523
Primary Part Number
90700-4
Item Name
Washer,flat
FSC / FSG
5310 / 53 — Nuts and Washers
Manufacturer
Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok
Status
ACTIVE
Overall Diameter
0.380 INCHES MINIMUM AND 0.382 INCHES MAXIMUM IN
Material Document and Classification
QQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Cross-Sectional Shape Style
RECTANGULAR
Peripheral Shape Style
ROUND
Material
NICKEL ALLOY OVERALL
Center Hole Shape Style
ROUND
Hole Diameter
0.226 INCHES MINIMUM AND 0.228 INCHES MAXIMUM IN
Thickness
0.0355 INCHES MINIMUM AND 0.0385 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items9
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5330-01-206-7355907004POSSIBLE MATCH
GASKET
Possible match (shared part number)Rcf Technologies Inc
6515-01-527-126990-7004POSSIBLE MATCH
DIAMOND-JAW HOLDER
Possible match (shared part number)Snowden Pencer, Inc.
1560-01-692-552390-7004-3POSSIBLE MATCH
STIFFENER,AIRCRAFT
Possible match (shared part number)The Boeing Company Div Defense
1560-01-692-553790-7004-1POSSIBLE MATCH
STIFFENER,AIRCRAFT
Possible match (shared part number)The Boeing Company Div Defense
1560-01-692-576290-7004-2POSSIBLE MATCH
STIFFENER,AIRCRAFT
Possible match (shared part number)The Boeing Company Div Defense
1560-01-700-515590-7004-6POSSIBLE MATCH
STIFFENER,AIRCRAFT
Possible match (shared part number)The Boeing Company Div Legacy Wichita
1560-01-700-634990-7004-7POSSIBLE MATCH
STIFFENER,AIRCRAFT
Possible match (shared part number)The Boeing Company Div Legacy Wichita
1560-01-700-717690-7004-8POSSIBLE MATCH
STIFFENER,AIRCRAFT
Possible match (shared part number)The Boeing Company Div Legacy Wichita
1560-01-700-819690-7004-5POSSIBLE MATCH
STIFFENER,AIRCRAFT
Possible match (shared part number)The Boeing Company Div Legacy Wichita
Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok (USA)
Related Parts
5330-01-206-7355POSSIBLE MATCH
GASKET
907004
6515-01-527-1269POSSIBLE MATCH
DIAMOND-JAW HOLDER
90-7004
1560-01-692-5523POSSIBLE MATCH
STIFFENER,AIRCRAFT
90-7004-3
1560-01-692-5537POSSIBLE MATCH
STIFFENER,AIRCRAFT
90-7004-1
1560-01-692-5762POSSIBLE MATCH
STIFFENER,AIRCRAFT
90-7004-2
1560-01-700-5155POSSIBLE MATCH
STIFFENER,AIRCRAFT
90-7004-6
1560-01-700-6349POSSIBLE MATCH
STIFFENER,AIRCRAFT
90-7004-7
1560-01-700-7176POSSIBLE MATCH
STIFFENER,AIRCRAFT
90-7004-8
1560-01-700-8196POSSIBLE MATCH
STIFFENER,AIRCRAFT
90-7004-5
Frequently Asked Questions
What is NSN 5310-01-050-1523?
NSN 5310-01-050-1523 is a Washer,flat, manufactured by Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok, classified under FSC 5310, Nuts and Washers. Status: active.
What part numbers are listed for NSN 5310-01-050-1523?
NSN 5310-01-050-1523 has 1 manufacturer part number on file: 90700-4 (Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok).
What NSN replaces 5310-01-050-1523?
9 possible matches (shared part number, not a government interchangeability claim): 5330-01-206-7355, 6515-01-527-1269, 1560-01-692-5523. Verify interchangeability with system specifications before substitution.
What are the specifications of 90700-4?
Key specifications for 90700-4: Overall Diameter: 0.380 INCHES MINIMUM AND 0.382 INCHES MAXIMUM IN; Material Document and Classification: QQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND. 8 specifications are documented in the U.S. Government catalog.
Is NSN 5310-01-050-1523 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.