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12521R101 — LAMPHOLDER

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

12521R101: LAMPHOLDER.

The LAMPHOLDER is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY SHELL, overall_width: 1.000 INCHES NOMINAL IN, terminal_type: WIRE LEAD, coating_method: PLATED SHELL, overall_height: 0.950 INCHES NOMINAL IN, mounting_method: UNTHREADED HOLE(S) LOCATION NOT OTHERWISE SPECIFIED. This part is cataloged in the U.S.

Government catalog under NSN 6250-00-477-4149, 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
12521R101
NSN: 6250-00-477-4149
FSC: 6250 — Ballasts, Lampholders, and Starters
CAGE: 07797 — ROCKER SOLENOID CO DBA ROCKER SOLENOID CO (USA)
SPECIFICATIONS
materialCOPPER ALLOY SHELL
overall_width1.000 INCHES NOMINAL IN
terminal_typeWIRE LEAD
coating_methodPLATED SHELL
overall_height0.950 INCHES NOMINAL IN
mounting_methodUNTHREADED HOLE(S) LOCATION NOT OTHERWISE SPECIFIED
style_designatorSIGN AND FIXTURE
voltage_in_volts115.0
surface_treatmentNICKEL SHELL
terminal_quantity2
mounting_feature_typeSURFACE
wiring_provision_length50.000 INCHES NOMINAL IN
NSN6250-00-477-4149
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available LAMPHOLDER TITLE COMPONENT PN 12521R101 MFR LAMPHOLDER
KEY FEATURES
•
TERMINAL QUANTITY: 2
•
TERMINAL TYPE: WIRE LEAD
•
COATING METHOD: PLATED SHELL
•
MOUNTING METHOD: UNTHREADED HOLE(S) LOCATION NOT OTHERWISE SPECIFIED
•
STYLE DESIGNATOR: SIGN AND FIXTURE
•
VOLTAGE IN VOLTS: 115.0
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.950 INCHES NOMINAL IN
TERMINAL QUANTITY2
TERMINAL TYPEWIRE LEAD
COATING METHODPLATED SHELL
MOUNTING METHODUNTHREADED HOLE(S) LOCATION NOT OTHERWISE SPECIFIED
STYLE DESIGNATORSIGN AND FIXTURE
VOLTAGE IN VOLTS115.0
OVERALL WIDTH1.000 INCHES NOMINAL IN
LAMP BASE TYPE ACCOMMODATEDMINIATURE BIPIN
MOUNTING DEVICE QUANTITY4
SUBSTITUTES & CROSS-REFERENCES 2
618424-3Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
30149-2Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12521R101?
12521R101 is a LAMPHOLDER.
What parts can replace 12521R101?
There are 2 known substitutes for 12521R101: 618424-3, 30149-2. Substitute compatibility should be verified for your specific system.
What is the NSN for 12521R101?
12521R101 is cataloged in the U.S. Government catalog under NSN 6250-00-477-4149. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.