871-4-21 — 871-4-21

✓ Government record, cited

— · MRO · MRO_GENERAL

PRODUCT OVERVIEW

871-4-21: 871-4-21.

The 871-4-21 is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY 718 OVERALL, head_style: SPLINE EXTENDED WASHER, grip_length: 1.303 INCHES MINIMUM AND 1.323 INCHES MAXIMUM IN, head_height: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5999-00-234-1868, 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

MRO→ MRO_GENERAL→ 871-4-21

NSN: 5999-00-234-1868
NIINs: 002341868, 015159828
FSC: 5999 — Miscellaneous Electrical and Electronic Components
CAGE: 00779 — TE CONNECTIVITY CORPORATION (USA)

SPECIFICATIONS

material	NICKEL ALLOY 718 OVERALL
head_style	SPLINE EXTENDED WASHER
grip_length	1.303 INCHES MINIMUM AND 1.323 INCHES MAXIMUM IN
head_height	0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
thread_class	3A A
grip_diameter	0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN
thread_length	0.592 INCHES NOMINAL IN
surface_finish	32.0 MICROINCHES BEARING SURFACE OF HEAD
fastener_length	1.890 INCHES MINIMUM AND 1.920 INCHES MAXIMUM IN
thread_direction	RIGHT-HAND
surface_treatment	PASSIVATE OVERALL
head_minor_diameter	0.235 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
NSN	5999-00-234-1868

COMPONENT DIAGRAM

KEY FEATURES

•

PRECIOUS MATERIAL: GOLD

•

MOUNTING METHOD: FORCE FIT

•

STYLE DESIGNATOR: RECTANGULAR SHAPE

•

PRECIOUS MATERIAL AND WEIGHT: 0.005 GOLD GRAINS, TROY

•

SURFACE TREATMENT: GOLD AND NICKEL CONTACT

TECHNICAL CHARACTERISTICS

OVERALL HEIGHT	0.066 INCHES NOMINAL IN
PRECIOUS MATERIAL	GOLD
MOUNTING METHOD	FORCE FIT
STYLE DESIGNATOR	RECTANGULAR SHAPE
PRECIOUS MATERIAL AND WEIGHT	0.005 GOLD GRAINS, TROY
OVERALL LENGTH	0.515 INCHES NOMINAL IN
OVERALL WIDTH	0.071 INCHES NOMINAL IN
SURFACE TREATMENT	GOLD AND NICKEL CONTACT
SURFACE TREATMENT	GOLD AND NICKEL BODY
PRECIOUS MATERIAL AND LOCATION	BODY AND CONTACT SURFACES GOLD

SUBSTITUTES & CROSS-REFERENCES 2

1-85975-8Reference document

Same NSN cross-reference

Reference document — Secondary reference

563429-000Reference document

Same NSN cross-reference

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

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 871-4-21?

871-4-21 is a 871-4-21. It is classified as a MRO (MRO_GENERAL).

What parts can replace 871-4-21?

There are 2 known substitutes for 871-4-21: 1-85975-8, 563429-000. Substitute compatibility should be verified for your specific system.

What is the NSN for 871-4-21?

871-4-21 is cataloged in the U.S. Government catalog under NSN 5999-00-234-1868. This indicates validated use in U.S. government and defense supply chains.

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