PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SK-134622Ring,wearing

Curtiss-Wright Electro-Mechanical Corporation Div Epd · NSN 4320-00-218-3210 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-218-3210 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-218-3210. Primary manufacturer part number: SK-134622.
Features
  • Ring,wearing — FSC 4320
  • Surface Finish: 125.0 MICROINCHES RIGHT FACE
  • Material Document and Classification: MIL-B-16261,GR 2 MIL SPEC SINGLE MATERIAL RESPONSE
  • Surface Finish: 125.0 MICROINCHES OUTSIDE
  • Material: COPPER ALLOY
  • Surface Finish: 125.0 MICROINCHES LEFT FACE
  • Corner Shape: SQUARE ALL CORNERS
  • Surface Finish: 125.0 MICROINCHES INSIDE
Applications
  • Applications requiring Copper Alloy construction
General Description

The Ring,wearing, cataloged under National Stock Number 4320-00-218-3210, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Curtiss-Wright Electro-Mechanical Corporation Div Epd. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 16 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-00-218-3210
Primary Part NumberSK-134622
Item NameRing,wearing
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerCurtiss-Wright Electro-Mechanical Corporation Div Epd
StatusACTIVE
Surface Finish125.0 MICROINCHES RIGHT FACE
Material Document and ClassificationMIL-B-16261,GR 2 MIL SPEC SINGLE MATERIAL RESPONSE
Surface Finish125.0 MICROINCHES OUTSIDE
MaterialCOPPER ALLOY
Surface Finish125.0 MICROINCHES LEFT FACE
Corner ShapeSQUARE ALL CORNERS
Surface Finish125.0 MICROINCHES INSIDE
Bolt Hole Quantity4
Unthreaded Mounting Hole Diameter0.219 INCHES NOMINAL IN
Bolt Circle Diameter2.438 INCHES NOMINAL IN
Body StylePLAIN
Body Inside Diameter1.845 INCHES NOMINAL IN
Body Outside Diameter2.996 INCHES MINIMUM AND 2.998 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
8415-00-078-4799 INTERCHANGEABLE
Vest,identifying
2540-00-248-4603104-18 INTERCHANGEABLE
Blade,windshield Wiper
Trico Products Corporation
5315-00-276-434610199 INTERCHANGEABLE
Pin,straight,headed
Garwood/feller Inc Garwood Winch Div
4730-00-278-8257 INTERCHANGEABLE
Adapter,straight,pipe to Hose
5365-00-412-750594072 INTERCHANGEABLE
Bushing
Telemechanics Inc
5330-00-420-963210418LPDH1L5 INTERCHANGEABLE
Seal,plain
Parker-Hannifin Corporation Dba Pneutronics Div Engineered Polymer Systems
1620-00-523-771310418 INTERCHANGEABLE
Retainer,nose Wheel
Moog Military Aircraft Llc
3110-00-555-5424 INTERCHANGEABLE
Bearing,ball,annular
5310-00-595-7239373-1010-000 INTERCHANGEABLE
Washer,lock
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
5930-01-133-4928 INTERCHANGEABLE
Switch,rotary
Cross-Reference Index
Part NumberManufacturer
RW99222PC14 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
SK-134622 PRIMARY Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
RW99222 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
RW99222PC14 Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
F178412G Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
SK-134622 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
RW97271PC14 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
SL6736PC30 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
SL4597PC60 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
178412G Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
2991P Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
SL5458PC60 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
SL5163PC60 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
SL5528PC40 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
SK-134622 P/N10418 Rps-Fl, Inc. Dba Rps Inc (USA)
10418 Rps-Fl, Inc. Dba Rps Inc (USA)
Related Parts
8415-00-078-4799INTERCHANGEABLE
VEST,IDENTIFYING
2540-00-248-4603INTERCHANGEABLE
BLADE,WINDSHIELD WIPER
104-18
5315-00-276-4346INTERCHANGEABLE
PIN,STRAIGHT,HEADED
10199
4730-00-278-8257INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO HOSE
5365-00-412-7505INTERCHANGEABLE
BUSHING
94072
5330-00-420-9632INTERCHANGEABLE
SEAL,PLAIN
10418LPDH1L5
1620-00-523-7713INTERCHANGEABLE
RETAINER,NOSE WHEEL
10418
3110-00-555-5424INTERCHANGEABLE
BEARING,BALL,ANNULAR
5310-00-595-7239INTERCHANGEABLE
WASHER,LOCK
373-1010-000
5930-01-133-4928INTERCHANGEABLE
SWITCH,ROTARY
5975-01-372-2385INTERCHANGEABLE
MOUNTING BASE,ELECTRICAL EQUIPME
10418
6115-01-436-7104INTERCHANGEABLE
GENERATOR SET,DIESEL ENGINE
10418

Frequently Asked Questions

What is NSN 4320-00-218-3210?

NSN 4320-00-218-3210 is a Ring,wearing, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Epd, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-00-218-3210?

NSN 4320-00-218-3210 has 16 cross-referenced part numbers: RW99222PC14 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), SK-134622 (Curtiss-Wright Electro-Mechanical Corporation Div Epd), RW99222 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), RW99222PC14 (Curtiss-Wright Electro-Mechanical Corporation Div Epd), F178412G (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging) and 11 more.

What NSN replaces 4320-00-218-3210?

There are 12 known substitutes for 4320-00-218-3210: 8415-00-078-4799, 2540-00-248-4603, 5315-00-276-4346 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SK-134622?

Key specifications for SK-134622: Overall Length: 0.375 INCHES NOMINAL IN; Surface Finish: 125.0 MICROINCHES RIGHT FACE; Special Features: MTG HOLES COUNTERBORED 0.344 IN. DIA AND 0.188 IN. DEEP IN; Material Document and Classification: MIL-B-16261,GR 2 MIL SPEC SINGLE MATERIAL RESPONSE. 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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