138781 — SPRING,HELICAL,COMPRESSION

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

138781: SPRING,HELICAL,COMPRESSION.

The SPRING,HELICAL,COMPRESSION is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, end_style: SPRING END,SQUARED AND GROUND BOTH ENDS, coil_quantity: 5 1/2, inside_diameter: 0.407 INCHES MINIMUM AND 0.417 INCHES MAXIMUM IN, style_designator: CYLINDRICAL, spring_free_length: 0.640 INCHES MINIMUM AND 0.660 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5365-00-661-3768, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS

138781

NSN: 5365-00-661-3768
NIINs: 006613768, 008376727, 011386638, 013202380
FSC: 5365 — Bushings, Rings, Shims, and Spacers
CAGE: H0001 — DAF TRUCKS N.V. (NLD)

SPECIFICATIONS

material	STEEL OVERALL
end_style	SPRING END,SQUARED AND GROUND BOTH ENDS
coil_quantity	5 1/2
inside_diameter	0.407 INCHES MINIMUM AND 0.417 INCHES MAXIMUM IN
style_designator	CYLINDRICAL
spring_free_length	0.640 INCHES MINIMUM AND 0.660 INCHES MAXIMUM IN
spring_solid_length	0.262 INCHES NOMINAL IN
coil_helix_direction	RIGHT-HAND
spring_deflection_rate	16.000 POUNDS PER INCH NOMINAL LBS
accommodated_rod_diameter	0.448 INCHES NOMINAL IN
spring_free_outside_diameter	0.501 INCHES MINIMUM AND 0.511 INCHES MAXIMUM IN
NSN	5365-00-661-3768

COMPONENT DIAGRAM

KEY FEATURES

•

HARDNESS RATING: 50.0 ROCKWELL C MINIMUM AND 65.0 ROCKWELL C MAXIMUM

•

STYLE DESIGNATOR: CIRCULAR

•

OUTSIDE DIAMETER: 3.562 INCHES NOMINAL IN

•

APERTURE DIAMETER: 2.490 INCHES MINIMUM AND 2.495 INCHES MAXIMUM IN

•

BOLT HOLE QUANTITY: 4

•

BOLT CIRCLE DIAMETER: 3.031 INCHES NOMINAL IN

•

MATERIAL: COPPER ALLOY

TECHNICAL CHARACTERISTICS

HARDNESS RATING	50.0 ROCKWELL C MINIMUM AND 65.0 ROCKWELL C MAXIMUM
STYLE DESIGNATOR	CIRCULAR
OUTSIDE DIAMETER	3.562 INCHES NOMINAL IN
APERTURE DIAMETER	2.490 INCHES MINIMUM AND 2.495 INCHES MAXIMUM IN
BOLT HOLE QUANTITY	4
BOLT CIRCLE DIAMETER	3.031 INCHES NOMINAL IN
SPECIAL FEATURES	2 GROOVES ONE ON EACH SIDE
MATERIAL	COPPER ALLOY
HOLE DIAMETER	0.250 INCHES NOMINAL IN

SUBSTITUTES & CROSS-REFERENCES 7

83073636Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

2099520Reference document

Same NSN cross-reference

Reference document — Secondary reference

353108Reference document

Same NSN cross-reference

Reference document — Secondary reference

JT10536Reference document

Same NSN cross-reference

Reference document — Secondary reference

596776Reference document

Same NSN cross-reference

Reference document — Secondary reference

1229Y883Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 138781?

138781 is a SPRING,HELICAL,COMPRESSION.

What parts can replace 138781?

There are 7 known substitutes for 138781: 83073636, 2099520, 353108 and 4 more. Substitute compatibility should be verified for your specific system.

What is the NSN for 138781?

138781 is cataloged in the U.S. Government catalog under NSN 5365-00-661-3768. This indicates validated use in U.S. government and defense supply chains.

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138781 — SPRING,HELICAL,COMPRESSION

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