R521 — RESISTOR,FIXED,WIRE WOUND,INDUCT

✓ Government record, cited

— · MRO · MRO_GENERAL

PRODUCT OVERVIEW

R521: RESISTOR,FIXED,WIRE WOUND,INDUCT.

RESISTOR,FIXED,WIRE WOUND,INDUCT. Key specifications include diameter: 0.281 INCHES NOMINAL IN, material: STEEL COMP 1012 BAND, body_width: 0.300 INCHES NOMINAL IN, body_height: 0.100 INCHES NOMINAL IN, body_length: 0.295 INCHES NOMINAL IN, overall_width: 0.625 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-737-7780, 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→ R521

NSN: 5340-00-737-7780
NIINs: 007377780, 009747875, 010910864
FSC: 5340 — Hardware, Commercial
CAGE: 66155 — PORTA DRILL INC (USA)

SPECIFICATIONS

diameter	0.281 INCHES NOMINAL IN
material	STEEL COMP 1012 BAND
body_width	0.300 INCHES NOMINAL IN
body_height	0.100 INCHES NOMINAL IN
body_length	0.295 INCHES NOMINAL IN
overall_width	0.625 INCHES NOMINAL IN
terminal_type	PIN
inclosure_type	ENCAPSULATED
terminal_width	0.220 INCHES NOMINAL IN
terminal_length	1.250 INCHES MINIMUM IN
style_designator	TERMINALS ONE EDGE
tongue_hole_type	ROUND, UNTHREADED
NSN	5340-00-737-7780

COMPONENT DIAGRAM

KEY FEATURES

•

STYLE DESIGNATOR: SINGLE LOOP

•

MATERIAL DOCUMENT AND CLASSIFICATION: AISI ASSN STD SINGLE MATERIAL RESPONSE BAND

•

DIAMETER: 0.281 INCHES NOMINAL IN

•

MATERIAL THICKNESS: 0.031 INCHES NOMINAL IN

•

DISTANCE FROM LOOP CENTER TO TONGUE END: 1.016 INCHES NOMINAL IN

•

SURFACE TREATMENT: CADMIUM BAND

•

TONGUE HOLE TYPE: ROUND, UNTHREADED

TECHNICAL CHARACTERISTICS

STYLE DESIGNATOR	SINGLE LOOP
MATERIAL DOCUMENT AND CLASSIFICATION	AISI ASSN STD SINGLE MATERIAL RESPONSE BAND
DIAMETER	0.281 INCHES NOMINAL IN
OVERALL WIDTH	0.625 INCHES NOMINAL IN
MATERIAL THICKNESS	0.031 INCHES NOMINAL IN
DISTANCE FROM LOOP CENTER TO TONGUE END	1.016 INCHES NOMINAL IN
SURFACE TREATMENT	CADMIUM BAND
TONGUE HOLE TYPE	ROUND, UNTHREADED
CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE	0.734 INCHES NOMINAL IN
MATERIAL	STEEL COMP 1012 BAND

SUBSTITUTES & CROSS-REFERENCES 4

200406Reference document

Same NSN cross-reference

Reference document — Secondary reference

X200406Reference document

Same NSN cross-reference

Reference document — Secondary reference

13259EReference document

Same NSN cross-reference

Reference document — Secondary reference

BW200406Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is R521?

R521 is a RESISTOR,FIXED,WIRE WOUND,INDUCT. It is classified as a MRO (MRO_GENERAL).

What parts can replace R521?

There are 4 known substitutes for R521: 200406, X200406, 13259E and 1 more. Substitute compatibility should be verified for your specific system.

What is the NSN for R521?

R521 is cataloged in the U.S. Government catalog under NSN 5340-00-737-7780. This indicates validated use in U.S. government and defense supply chains.

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R521 — RESISTOR,FIXED,WIRE WOUND,INDUCT

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