Part Number
Definition:
A FLAT METAL OR PLASTIC ITEM OF VARIOUS PERIPHERAL SHAPES HAVING A SOLID (NOT LAMINATED) CROSS-SECTION. IT IS DESIGNED TO MAINTAIN A PREDETERMINED DISTANCE BETWEEN TWO SURFACES. FOR ROUND ITEMS WITHOUT A HOLE HAVING A SOLID RECTANGULAR CROSS-SECTION USE DISK, SOLID, PLAIN. FOR ROUND OR HEXAGONAL ITEMS WITH ONLY ONE HOLE CENTRALLY LOCATED AND WITH THE LENGTH (THICKNESS) EXCEEDING 25 PERCENT OF THE OUTSIDE DIAMETER OR DISTANCE ACROSS PERIPHERAL FLATS, SEE SPACER, SLEEVE. THE THICKNESS BETWEEN THE TWO PARALLEL BEARING SURFACES MUST BE 0.006 INCH, (0.152 MM) OR MORE FOR ITEMS LESS THAN 1/4 INCH (6.35 MM) ACROSS THE PERIPHERAL DIAMETER, OR SMALLEST OVERALL OUTSIDE DIMENSION, OR MUST BE 0.016 INCH (0.406 MM) OR MORE FOR ITEMS 1/4 INCH (6.35 MM) OR GREATER ACROSS THE PERIPHERAL DIAMETER OR SMALLEST OVERALL OUTSIDE DIMENSION. FOR ITEMS WITH A THICKNESS LESS THAN THOSE INDICATED ABOVE, SEE SHIM. FOR ITEMS WITH ONE HOLE CENTRALLY LOCATED CONFORMING TO THE ABOVE DIMENSIONAL CRITERIA USE WASHER, FLAT OR SPACER, RING AS APPLICABLE. WHEN THICKNESS AND/OR OUTSIDE DIAMETER OR SMALLEST OVERALL OUTSIDE DIMENSION IS DESIGNATED AS A TOLERANCE/DIMENSION THE MAXIMUM DIMENSION WILL BE USED TO DETERMINE COMPLIANCE. EXCLUDES GASKET; INSULATOR (AS MODIFIED) AND MOUNTING PAD, ELECTRICAL-ELECTRONIC COMPONENT.
CAGE Information
Code | Company |
---|---|
81755 | LOCKHEED MARTIN CORPORATION DBA LOCK |
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 |
---|---|---|
ABHP | OVERALL LENGTH | 0.928 INCHES NOMINAL |
AAUB | HOLE DIAMETER | 0.097 INCHES MINIMUM AND 0.107 INCHES MAXIMUM |
MATT | MATERIAL | ALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 6061 |
ABVL | APERTURE DIAMETER | 0.322 INCHES MINIMUM AND 0.332 INCHES MAXIMUM |
AECS | BOLT HOLE QUANTITY | 2 |
ADUM | OVERALL THICKNESS | 0.063 INCHES NOMINAL |
ABMK | OVERALL WIDTH | 0.420 INCHES MINIMUM AND 0.460 INCHES MAXIMUM |
CWWP | SIDE RADIUS | 0.220 INCHES NOMINAL |
ADUZ | CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH | 0.680 INCHES MINIMUM AND 0.696 INCHES MAXIMUM |
STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625,TY 1 MIL SPEC 1ST TREATMENT RESPONSE AND MIL-P-23377 MIL SPEC 1ST TREATMENT RESPONSE OR MIL-C-5541,CL 1A FED SPEC 2ND TREATMENT RESPONSE |
SFTT | SURFACE TREATMENT | ANODIZE AND PLASTIC POLYAMIDE OR CHROMATE |
STYL | STYLE DESIGNATOR | NON-CIRCULAR W/O RADIUS |
MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-250/5 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-250/4,T3 OR T181 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-250/11,T6 FED SPEC 2ND MATERIAL RESPONSE |