1A — SWITCH,TELEPHONE,SELECTOR

✓ Government record, cited

— · MRO · MRO_GENERAL

PRODUCT OVERVIEW

1A: SWITCH,TELEPHONE,SELECTOR.

The SWITCH,TELEPHONE,SELECTOR is a the manufacturer industrial component. Key specifications include phase: THREE, width: 1.000 INCHES NOMINAL IN, height: 0.238 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN, length: 1.000 INCHES NOMINAL IN, weight: 25.0 POUNDS NOMINAL LBS, arm_size: 3.000 FEET FT. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-010-3043, 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→ 1A

NSN: 5310-00-010-3043
NIINs: 000103043, 000936172, 001755456, 002028176, 002186420, 002378004, 002627020, 002747390, 002747391, 002747392, 002747394, 002766124, 002838718, 002875581, 002932390, 003783813, 004805383, 004849703, 005046583, 005163826, 005282741, 005406731, 006707413, 006847131, 006863696, 007202795, 007272317, 007310366, 008474970, 009312249, 009580637, 009580638, 009580639, 009580642, 009624473, 009795595, 010685100, 010725179, 011455743, 012131635, 013345608, 014646801, 015152958
FSC: 5310 — Nuts and Washers
CAGE: 1ML14 — BRINKLEY TECHNOLOGY GROUP LLC DBA HERCULES MANUFACTURING (USA)

SPECIFICATIONS

phase	THREE
width	1.000 INCHES NOMINAL IN
height	0.238 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN
length	1.000 INCHES NOMINAL IN
weight	25.0 POUNDS NOMINAL LBS
arm_size	3.000 FEET FT
diameter	0.041 INCHES NOMINAL STOCK IN
material	COPPER
tip_type	DESOLDERING
feed_type	HAND SCREW, SLIDING
nut_style	CASTELLATED, HEXAGON
unit_type	SAFETY
NSN	5310-00-010-3043

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 0.428 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN

•

THREAD SERIES: UNF

•

THREAD DIRECTION: RIGHT-HAND

•

NOMINAL THREAD SIZE: 0.250 INCHES IN

•

NONDEFINITIVE SPEC/STD DATA: A TYPE

•

NUT HEIGHT: 0.274 INCHES MINIMUM AND 0.288 INCHES MAXIMUM IN

•

NUT STYLE: CASTELLATED, HEXAGON

•

THREAD CLASS: 2B

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	0.428 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN
THREAD SERIES	UNF
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.250 INCHES IN
NONDEFINITIVE SPEC/STD DATA	A TYPE
NUT HEIGHT	0.274 INCHES MINIMUM AND 0.288 INCHES MAXIMUM IN
NUT STYLE	CASTELLATED, HEXAGON
THREAD CLASS	2B
THREAD QUANTITY PER INCH	28
MATERIAL	STEEL OVERALL

SUBSTITUTES & CROSS-REFERENCES 6

103043Reference document

Same NSN cross-reference

Reference document — Secondary reference

FFB571TYPEAReference document

Same NSN cross-reference

Reference document — Identification reference

BB1359Reference document

Same NSN cross-reference

Reference document — Secondary reference

X4-50Reference document

Same NSN cross-reference

Reference document — Secondary reference

89-163JSame NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

139882HReference 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 1A?

1A is a SWITCH,TELEPHONE,SELECTOR. It is classified as a MRO (MRO_GENERAL).

What parts can replace 1A?

There are 6 known substitutes for 1A: 103043, FFB571TYPEA, BB1359 and 3 more. Substitute compatibility should be verified for your specific system.

What is the NSN for 1A?

1A is cataloged in the U.S. Government catalog under NSN 5310-00-010-3043. This indicates validated use in U.S. government and defense supply chains.

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