18251 — BLOCK,CONTROL CIRCUIT

✓ Government record, cited

— · MRO · MRO_GENERAL

PRODUCT OVERVIEW

18251: BLOCK,CONTROL CIRCUIT.

The BLOCK,CONTROL CIRCUIT is a the manufacturer industrial component. Key specifications include height: 1.312 INCHES NOMINAL IN, material: COPPER ALLOY FINGER, body_style: STRAIGHT HANDLE, ring_style: STRAIGHT GAP, body_length: 0.990 INCHES NOMINAL IN, finger_type: BANANA SPRING SINGLE FINGER. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-243-1484, 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→ 18251

NSN: 4730-00-243-1484
NIINs: 002431484, 005660156, 005849032, 010951553, 011662576, 014178387, 014995497, 015562739, 015714883
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 95879 — STEWART-WARNER ALEMITE CORP (USA)

SPECIFICATIONS

height	1.312 INCHES NOMINAL IN
material	COPPER ALLOY FINGER
body_style	STRAIGHT HANDLE
ring_style	STRAIGHT GAP
body_length	0.990 INCHES NOMINAL IN
finger_type	BANANA SPRING SINGLE FINGER
shank_length	0.562 INCHES NOMINAL IN
finger_length	0.560 INCHES NOMINAL ALL FINGERS IN
hole_diameter	0.562 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
terminal_type	INTERNAL SETSCREW
overall_length	1.550 INCHES NOMINAL IN
finger_diameter	0.166 INCHES NOMINAL ALL FINGERS IN
NSN	4730-00-243-1484

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 0.875 INCHES NOMINAL IN

•

SHANK LENGTH: 0.562 INCHES NOMINAL IN

•

STYLE DESIGNATOR: STRAIGHT

•

THREAD PITCH DIAMETERS: +0.6120 TO 0.6379 INCHES IN

•

NOMINAL THREAD SIZE: 0.375 INCHES IN

•

HEIGHT: 1.312 INCHES NOMINAL IN

•

SCREW THREAD SERIES DESIGNATOR: NPT

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	0.875 INCHES NOMINAL IN
SHANK LENGTH	0.562 INCHES NOMINAL IN
STYLE DESIGNATOR	STRAIGHT
THREAD PITCH DIAMETERS	+0.6120 TO 0.6379 INCHES IN
NOMINAL THREAD SIZE	0.375 INCHES IN
HEIGHT	1.312 INCHES NOMINAL IN
SPECIAL FEATURES	7/16 IN. LG THD IN
SCREW THREAD SERIES DESIGNATOR	NPT
SURFACE TREATMENT	ZINC OVERALL
THREAD QUANTITY PER INCH	18

SUBSTITUTES & CROSS-REFERENCES 8

1822-A1Reference document

Same NSN cross-reference

Reference document — Secondary reference

13227E9646-3Reference document

Same NSN cross-reference

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

1822AReference document

Same NSN cross-reference

Reference document — Secondary reference

13227E9646Reference document

Same NSN cross-reference

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

1825Reference document

Same NSN cross-reference

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

1790012Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 18251?

18251 is a BLOCK,CONTROL CIRCUIT. It is classified as a MRO (MRO_GENERAL).

What parts can replace 18251?

There are 8 known substitutes for 18251: 1822-A1, 13227E9646-3, 1822A and 5 more. Substitute compatibility should be verified for your specific system.

What is the NSN for 18251?

18251 is cataloged in the U.S. Government catalog under NSN 4730-00-243-1484. This indicates validated use in U.S. government and defense supply chains.

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