5340-00-939-1288 RETAINER,HELICAL COMPRESSION SPR Index 5340-00-944-3630 COVER,ACCESS

National Stock Number:
5340-00-943-9351

Federal Supply Class:
5340

National Item Identification Number:
009439351

Description:
COVER,ACCESS

Detail:
A rigid or flexible item of various shapes attached to a structure for the purpose of providing access for inspection, service, replacement of components and/or adjustments or mounting operations. It is designed to be attached by means of bolt holes, slots, mounting ears, tabs, and the like. To permit access, the mounted cover requires partial or complete removal. It may include an observation window. For items permanently attached by hinges and the like, see DOOR, ACCESS. Excludes all covers not specifically designed to provide access for the purposes listed above.


Manufacturer Information:
369A203502731MCDONNELL DOUGLAS HELICOPTER CO INC
369A20358V613THE BOEING COMPANY


Techincal Specification:
BODY THICKNESS0.006 INCHES MINIMUM AND 0.026 INCHES MAXIMUM
BOLT CIRCLE DIAMETER5.470 INCHES MINIMUM AND 5.530 INCHES MAXIMUM
BOLT CIRCLE HOLE QUANTITY4
CROSS-SECTIONAL SHAPE STYLEARCHED
HOLE DIAMETER0.215 INCHES MINIMUM AND 0.225 INCHES MAXIMUM
INSIDE CORNER RADIUS6.380 INCHES NOMINAL
OUTSIDE DIAMETER6.220 INCHES MINIMUM AND 6.280 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/5,T3 FED SPEC SINGLE MATERIAL RESPONSE
MATERIALALUMINUM ALLOY 2024
MOUNTING OPENING SHAPE STYLEUNTHREADED HOLE
PERIPHERAL SHAPE STYLEROUND, MULTI HOLES
SECURING DEVICE TYPETHREADED FASTENER
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-5541,TYPE 2,GRADE C CLASS2 MIL SPEC SINGLE TREATMENT RESPONSE
SURFACE TREATMENTOXIDE FILM


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