Model: 157890-21

Ring Spacer

Properties:

Inside Diameter

Between 0.610 inches and 0.615 inches

Outside Diameter

0.720 inches

Overall Thickness

Between 0.0271 inches and 0.0273 inches

Material

Steel comp 1215 or steel comp 1010 or steel comp 1020

Material Specification

Qq-s-637 federal specification all material responses or astm a108 assn standard all material responses

NSN

5365-01-066-2834

Part Number

157890-21

Description

Spacer,ring

CAGE

35351

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.

Part 157890-21 NSN 5365-01-066-2834

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

24307

FIIG:

A07000

Concept No.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

Item Weight:

Item Dim:

OPI

SPI No.

SPI Rev.

SPC Mkg.

LVL A

LVL B

OPI:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

194160

UFC:

55210

LTL:

50.0

LCL:

WCC:

713

TCC:

SHC:

ACC:

Construction Materials

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Schedule B and Export

Schedule B: 7326908595
SITC: 69969
End Use: Finished metal shapes
NAICS: 332999
USDA: 1

Freight Class: Other articles of iron or steel not wire nesoi