S1863 — NUT,PLAIN,HEXAGON

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

S1863: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: HEXAGON, nut_height: 0.250 INCHES NOMINAL IN, thread_class: 2B, thread_series: UNF, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-021-8564, 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

S1863

NSN: 5310-00-021-8564
FSC: 5310 — Nuts and Washers
CAGE: 64161 — WEAVER DIV OF DURA CORP (USA)

SPECIFICATIONS

material	STEEL OVERALL
nut_style	HEXAGON
nut_height	0.250 INCHES NOMINAL IN
thread_class	2B
thread_series	UNF
thread_direction	RIGHT-HAND
width_across_flats	0.563 INCHES NOMINAL IN
nominal_thread_size	0.312 INCHES IN
bearing_surface_type	WASHER FACED
thread_quantity_per_inch	24
nondefinitive_spec/std_data	A TYPE
departure_from_cited_document	AS MODIFIED BY NUT HEIGHT
NSN	5310-00-021-8564

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 0.563 INCHES NOMINAL IN

•

THREAD SERIES: UNF

•

MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-633-CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL

•

THREAD DIRECTION: RIGHT-HAND

•

NOMINAL THREAD SIZE: 0.312 INCHES IN

•

DEPARTURE FROM CITED DOCUMENT: AS MODIFIED BY NUT HEIGHT

•

NONDEFINITIVE SPEC/STD DATA: A TYPE

•

NUT HEIGHT: 0.250 INCHES NOMINAL IN

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	0.563 INCHES NOMINAL IN
THREAD SERIES	UNF
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-S-633-CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.312 INCHES IN
DEPARTURE FROM CITED DOCUMENT	AS MODIFIED BY NUT HEIGHT
NONDEFINITIVE SPEC/STD DATA	A TYPE
NUT HEIGHT	0.250 INCHES NOMINAL IN
NUT STYLE	HEXAGON
THREAD CLASS	2B

SUBSTITUTES & CROSS-REFERENCES 8

NF5HReference document

Same NSN cross-reference

Reference document — Secondary reference

FFB571TYPEAReference document

Same NSN cross-reference

Reference document — Identification reference

X18203Reference document

Same NSN cross-reference

Reference document — Secondary reference

R20926Reference document

Same NSN cross-reference

Reference document — Secondary reference

218564Reference document

Same NSN cross-reference

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

10302Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is S1863?

S1863 is a NUT,PLAIN,HEXAGON.

What parts can replace S1863?

There are 8 known substitutes for S1863: NF5H, FFB571TYPEA, X18203 and 5 more. Substitute compatibility should be verified for your specific system.

What is the NSN for S1863?

S1863 is cataloged in the U.S. Government catalog under NSN 5310-00-021-8564. This indicates validated use in U.S. government and defense supply chains.

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