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National Stock Number (NSN) Output Data

NSN:
NIIN:
Item Name:
SPACER , RING

Definition:

A CIRCULAR-SHAPED ITEM DESIGNED TO MAINTAIN PREDETERMINED DISTANCE BETWEEN ASSEMBLED PARTS AND/OR FOR DISTRIBUTING PRESSURE OR PREVENTING ENDWISE MOVEMENT BETWEEN MEMBER PARTS. IT HAS A SOLID CROSS-SECTION AND TWO FLAT PARALLEL BEARING SURFACES. THE DISTANCE BETWEEN THE BEARING SURFACES PERPENDICULAR TO THE AXIS OF THE CENTRALLY LOCATED HOLE SHALL NOT EXCEED 25 PERCENT OF THE OUTSIDE DIAMETER. THE DIAMETER OF THE CENTRALLY LOCATED HOLE MUST EXCEED 75 PERCENT OF THE OUTSIDE DIAMETER. EXCLUDES LAMINATED ITEMS. FOR ITEMS MANUFACTURED FROM IMPREGNATED GRAPHITE OR LUBRICATED NONMETALLIC MATERIALS, EXCLUDING FELT OR PLASTICS, SEE GASKET. FOR ITEMS MANUFACTURED FROM LUBRICATED PLASTICS, SEE BEARING, WASHER, THRUST. FOR ITEMS MANUFACTURED FROM LUBRICATED FELT, SEE FELT, MECHANICAL, PREFORMED. EXCLUDES DISK, VALVE; INSULATOR WASHER; AND SHIM. SEE ALSO SPACER, PLATE AND SPACER, SLEEVE.

Reference/Part Number

Part Number CAGE Status RNCC RNVC DAC RNAAC MSDS SADC
612179-5 80020 A 3 2 A KZ

CAGE Information

Code Company
80020 NAVAL AIR WARFARE CENTER AIRCRAFT DI

Federal Supply Class

Title

BUSHINGS, RINGS, SHIMS, AND SPAC

Inclusions:

INCLUDES EXTERNALLY THREADED RINGS; KEYED AND SERRATED LOCK RINGS; DEE RINGS; INSTRUMENT RETAINING RINGS; SHIM SETS AND ASSORTMENTS; PLATE SPACERS; RING SPACERS; SLEEVE SPACERS; STEPPED SPACERS; SPACER SETS AND ASSORTMENTS; SLEEVE BUSHINGS; MACHINE THREADED BUSHINGS; MACHINE THREADED PLUGS.

Exclusions:

EXCLUDES SLEEVE BEARINGS (FSC 3120); PIPE THREADED PLUGS (FSC 4730); PISTON RINGS (FSC 2520, 2805, 2810, 2815, 2825, 2990, 3040, 4310, AND 4820); RETAINING RINGS (FSC 5325); SHIM STOCK (FSC 9515).

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
CSYM SURFACE FINISH 32.0 MICROINCHES LEFT SIDE
CSYM SURFACE FINISH 32.0 MICROINCHES LEFT SIDE
ABHE OUTSIDE DIAMETER 3.250 INCHES NOMINAL
CSYM SURFACE FINISH 32.0 MICROINCHES RIGHT SIDE
AARX INSIDE DIAMETER 3.005 INCHES MINIMUM AND 3.010 INCHES MAXIMUM
SFTT SURFACE TREATMENT ANODIZE
MATT MATERIAL ALUMINUM ALLOY 6061
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION MIL-A-8625,TYPE 2,DYED BLACK MIL SPEC SINGLE TREATMENT RESPONSE
ADUM OVERALL THICKNESS 0.656 INCHES MINIMUM AND 0.687 INCHES MAXIMUM
MDCL MATERIAL DOCUMENT AND CLASSIFICATION WW-T-700/6,T6 FED SPEC SINGLE MATERIAL RESPONSE
FEAT SPECIAL FEATURES 1 THREADED THROUGH HOLE 4-48 UNF-3B; 2 THREADED HOLES 4-40 UNC-2B

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