PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

193920Washer,key

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · NSN 5310-00-209-3767 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-209-3767 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-209-3767. Primary manufacturer part number: 193920.
Features
  • Washer,key — FSC 5310
  • Material Document and Classification: AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Material: STEEL COMP 321 OVERALL
  • Style Designator: KEY
  • Outside Diameter: 0.520 INCHES MINIMUM AND 0.540 INCHES MAXIMUM IN
  • Overall Distance Including Keys: 0.860 INCHES MINIMUM AND 0.900 INCHES MAXIMUM IN
  • External Key Quantity: 3
  • Split Key Length: 0.160 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 321 Overall construction
General Description

The Washer,key, cataloged under National Stock Number 5310-00-209-3767, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 15 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-209-3767
Primary Part Number193920
Item NameWasher,key
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusACTIVE
Material Document and ClassificationAMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MaterialSTEEL COMP 321 OVERALL
Style DesignatorKEY
Outside Diameter0.520 INCHES MINIMUM AND 0.540 INCHES MAXIMUM IN
Overall Distance Including Keys0.860 INCHES MINIMUM AND 0.900 INCHES MAXIMUM IN
External Key Quantity3
Split Key Length0.160 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN
Material Thickness0.027 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN
Hole Diameter0.315 INCHES MINIMUM AND 0.325 INCHES MAXIMUM IN
External Prebent Key Width0.135 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN
Angle Between External Keys58.0 DEGREES MINIMUM AND 62.0 DEGREES MAXIMUM
External Tapered Key Width0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
Distance From Centerline to Inside of Prebent Key0.325 INCHES MINIMUM AND 0.335 INCHES MAXIMUM IN
External Prebent Key Length0.105 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
External Prebent Key Angle28.0 DEGREES MINIMUM AND 32.0 DEGREES MAXIMUM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5330-01-117-731531200 INTERCHANGEABLE
Gasket
London Machinery Inc
5330-01-486-6616193920 INTERCHANGEABLE
Gasket
Rotaryaire Compressor Corp
Cross-Reference Index
Part NumberManufacturer
193920 Alinabal Holdings Corporation Div Engineered Products Group (USA)
193920 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
193920 Royal Oak Gage, Inc (USA)
Related Parts
5330-01-117-7315INTERCHANGEABLE
GASKET
31200
5330-01-486-6616INTERCHANGEABLE
GASKET
193920

Frequently Asked Questions

What is NSN 5310-00-209-3767?

NSN 5310-00-209-3767 is a Washer,key, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-209-3767?

NSN 5310-00-209-3767 has 3 cross-referenced part numbers: 193920 (Alinabal Holdings Corporation Div Engineered Products Group), 193920 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 193920 (Royal Oak Gage, Inc).

What NSN replaces 5310-00-209-3767?

There are 2 known substitutes for 5310-00-209-3767: 5330-01-117-7315, 5330-01-486-6616. Verify interchangeability with system specifications before substitution.

What are the specifications of 193920?

Key specifications for 193920: Material Document and Classification: AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Material: STEEL COMP 321 OVERALL; Style Designator: KEY; Outside Diameter: 0.520 INCHES MINIMUM AND 0.540 INCHES MAXIMUM IN. 15 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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