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National Stock Number:
5340-01-233-9935
Federal Supply Class:
5340
National Item Identification Number:
012339935
Description:
SEAT,HELICAL COMPRESSION SPRING
Detail:
A circular item, usually having a flat or grooved flange, boss(es), and/or counterbore designed to accommodate the end of the spring. It is used to position the spring, but does not encase the spring or restrain lateral motion. It may be used in conjunction with a RETAINER, HELICAL COMPRESSION SPRING. Excludes WASHER (1), (as modified); SEAT, BALL SOCKET and HOLDER, SPRING. See also ROTOR, ENGINE POPPET VALVE.
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Manufacturer Information:
| NF203129-1 | 78567 | SPECO CORP |
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Techincal Specification:
| END DIAMETER | 0.7470 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM | | BORE DIAMETER | 0.6310 INCHES MINIMUM AND 0.6320 INCHES MAXIMUM | | DESIGN TYPE | SOLID | | DISTANCE FROM END TO FIRST STEP | 0.1600 INCHES NOMINAL | | FIRST STEP DIAMETER | 1.3200 INCHES NOMINAL | | OVERALL HEIGHT | 0.3000 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A322, COMP 4340 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A331, COMP 4340 ASSN STD SINGLE MATERIAL RESPONSE | | MATERIAL HARDNESS RATING | 38.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM | | MATERIAL | STEEL COMP 4340 | | SPECIAL FEATURES | SIX HOLES,0.313 IN. MIN AND 0.318 IN. MAX DIA BY 0.100 IN. DEEP ON FIRST STEP DIA EQUALLY SPACED ON 1.000 IN. DIA BOLT CIRCLE; ONE KEYWAY IN BORE 0.127 IN. MIN AND 0.130 IN. MAX W,0.065 IN. MIN AND 0.069 IN. MAX DEEP BY 0.300 IN. LG | | STYLE DESIGNATOR | SEAT | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-13924,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE | | SURFACE TREATMENT | OXIDE |
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