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Technical Data Sheet
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212120 — Technical Data Sheet

✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

CAPACITOR,FIXED,MICA DIELECTRIC. Key specifications include material: STEEL OVERALL, face_type: CONCAVE, bore_style: PLAIN BOTH ENDS, mounting_style: PLAIN W/MOUNTING HOLE, overall_length: 48.0 MILLIMETERS NOMINAL MM, receptacle_width: 0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System under NSN 5325-00-638-8088, 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→ 212120
NSN: 5325-00-638-8088
FSC: 5325
CAGE: 71286 — HOWMET GLOBAL FASTENING SYSTEMS INC DIV CAMLOC PRODUCTS (USA)
SPECIFICATIONS
materialSTEEL OVERALL
face_typeCONCAVE
bore_stylePLAIN BOTH ENDS
mounting_stylePLAIN W/MOUNTING HOLE
overall_length48.0 MILLIMETERS NOMINAL MM
receptacle_width0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN
special_featuresSCREW, BONE, LOCKING, SELF-TAPPING, 3.5 MM; STARDRIVE RECESS; LENGTH: 48 MM; REPLACEMENT COMPONENT OF SMALL FRAGMENT SET, NSN 6515-01-588-8442 MM
style_designatorHUBLESS
receptacle_height0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN
face_nominal_width1.510 INCHES IN
thread_form_directionRIGHT-HAND
end_item_identification6515-01-588-8442 INSTRUMENT AND IMPLANT SET, MINI-FRAGMENT
NSN5325-00-638-8088
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 212120 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
RECEPTACLE WIDTH: 0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN
•
TURNLOCK MOUNTING HOLE DIAMETER: 0.096 INCHES MINIMUM AND 0.102 INCHES MAXIMUM IN
•
RECEPTACLE OVERALL LENGTH: 0.980 INCHES MINIMUM AND 1.020 INCHES MAXIMUM IN
•
MOUNTING STYLE: PLAIN W/MOUNTING HOLE
•
TURNLOCK RECEPTACLE STYLE: RECEPTACLE
•
CENTER TO CENTER DISTANCE BETWEEN MOUNTING HOLES: 0.747 INCHES MINIMUM AND 0.753 INCHES MAXIMUM IN
•
RECEPTACLE HEIGHT: 0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN
TYPICAL APPLICATIONS
  • RAID cache protection during power loss events
  • Write-back cache enablement for storage controllers
  • Enterprise server data integrity assurance
  • Hot-swap battery/capacitor replacement in production
TECHNICAL CHARACTERISTICS
RECEPTACLE WIDTH0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN
TURNLOCK MOUNTING HOLE DIAMETER0.096 INCHES MINIMUM AND 0.102 INCHES MAXIMUM IN
RECEPTACLE OVERALL LENGTH0.980 INCHES MINIMUM AND 1.020 INCHES MAXIMUM IN
SPECIAL FEATURESCOLOR IS RED. MATERIAL IS STAINLESS STEEL.
MOUNTING STYLEPLAIN W/MOUNTING HOLE
TURNLOCK RECEPTACLE STYLERECEPTACLE
CENTER TO CENTER DISTANCE BETWEEN MOUNTING HOLES0.747 INCHES MINIMUM AND 0.753 INCHES MAXIMUM IN
RECEPTACLE HEIGHT0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
A242ARDInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
54B6811H16InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
212-12SDInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
2121200InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
0212120InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
6515NCM105522InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 212120?
212120 is a CAPACITOR,FIXED,MICA DIELECTRIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace 212120?
There are 17 known substitutes for 212120: A242ARD, 54B6811H16, 212-12SD and 14 more. Substitute compatibility should be verified for your specific system.
Is 212120 still available?
212120 is currently cancelled.
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Last verified: September 2026