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Cross Reference

These part numbers have the same form, fit, and function as 3263988-51
Item Number Cage
3263988-51 82577

Technical Definition

Spacer, Plate, also referenced with federal logistics item name code 26979 - 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.

3263988-51

Description: Plate Spacer
Mfr. Cage 82577

Specification

Hole Diameter: 5/32", Length: 1-51/64", aluminum alloy 6061

AAUB Hole Diameter
From 0.146" and 0.152"
ABHP Overall Length
From 1.790" and 1.810"
ABMK Overall Width
From 0.665" and 0.685"
ADPQ Inside Corner Radius
0.015 inches
ADUE Aperture Width
From 0.198" and 0.202"
ADUF Aperture Length
From 0.898" and 0.902"
ADUM Overall Thickness
0.045 inches
ADUY Center To Center Distance Between Bolt Holes Along Width
From 0.288" and 0.308"
ADUZ Center To Center Distance Between Bolt Holes Along Length
From 1.490" and 1.510"
ADVD Outside Edge To Bolt Hole Center Distance Along Width
From 0.179" and 0.199"
ADVE Outside Edge To Bolt Hole Center Distance Along Length
From 0.140" and 0.160"
AECS Bolt Hole Quantity
4
AGAV For Use With/on
F-15i
CTRH Outside Edge To Inside Edge Smallest Distance Along Width
From 0.237" and 0.239"
CTSC Outside Edge To Inside Edge Smallest Distance Along Length
From 0.449" and 0.451"
FEAT Special Features
Mask all mating surfaces and holes; epoxy prime coat only outside edges of spacer per rpr17003 type i or ii; outside corners are chamfered 0.100 in. x 45.0 deg
MATT Material
Aluminum alloy 6061
MDCL Material Spec
Qq-a-250/11,t4 fed spec single material response or qq-a-250/11,t6 fed spec single material response
SFTT Surface Treatment
Chromate
STDC Surface Treatment Spec
Mil-c-5541,class 1a mil spec single treatment response
STYL Style Designator
Non-circular w/bolt holes
National Stock Number (NSN): 5365-01-436-3576

Last Modified: 02/14/2017