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C12934B — SEAT,HELICAL COMPRESSION SPRING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

C12934B: SEAT,HELICAL COMPRESSION SPRING.

SEAT,HELICAL COMPRESSION SPRING. Key specifications include material: STEEL COMP 1010, design_type: SOLID, end_diameter: 0.7190 INCHES NOMINAL IN, bore_diameter: 0.2500 INCHES NOMINAL IN, overall_height: 0.5620 INCHES NOMINAL IN, special_features: BRAKES,SHOE TYPE,VEHICULAR. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-753-9323, 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
C12934B
NSN: 5340-00-753-9323
FSC: 5340 — Hardware, Commercial
CAGE: 06721 — HALDEX BRAKE PRODUCTS CORPORATION (USA)
SPECIFICATIONS
materialSTEEL COMP 1010
design_typeSOLID
end_diameter0.7190 INCHES NOMINAL IN
bore_diameter0.2500 INCHES NOMINAL IN
overall_height0.5620 INCHES NOMINAL IN
special_featuresBRAKES,SHOE TYPE,VEHICULAR
surface_treatmentTIN
first_step_diameter1.0480 INCHES MINIMUM AND 1.0520 INCHES MAXIMUM IN
distance_from_end_to_first_step0.2810 INCHES NOMINAL IN
material_document_and_classificationSAE 1010 ASSN STD SINGLE MATERIAL RESPONSE
NSN5340-00-753-9323
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: C12934B MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
FIRST STEP DIAMETER: 1.0480 INCHES MINIMUM AND 1.0520 INCHES MAXIMUM IN
•
END DIAMETER: 0.7190 INCHES NOMINAL IN
•
DISTANCE FROM END TO FIRST STEP: 0.2810 INCHES NOMINAL IN
•
DESIGN TYPE: SOLID
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE 1010 ASSN STD SINGLE MATERIAL RESPONSE
•
SURFACE TREATMENT: TIN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.5620 INCHES NOMINAL IN
FIRST STEP DIAMETER1.0480 INCHES MINIMUM AND 1.0520 INCHES MAXIMUM IN
END DIAMETER0.7190 INCHES NOMINAL IN
DISTANCE FROM END TO FIRST STEP0.2810 INCHES NOMINAL IN
DESIGN TYPESOLID
MATERIAL DOCUMENT AND CLASSIFICATIONSAE 1010 ASSN STD SINGLE MATERIAL RESPONSE
SPECIAL FEATURESBRAKES,SHOE TYPE,VEHICULAR
SURFACE TREATMENTTIN
BORE DIAMETER0.2500 INCHES NOMINAL IN
MATERIALSTEEL COMP 1010
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES 2
7539323Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
1671M5Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is C12934B?
C12934B is a SEAT,HELICAL COMPRESSION SPRING.
What parts can replace C12934B?
There are 2 known substitutes for C12934B: 7539323, 1671M5. Substitute compatibility should be verified for your specific system.
What is the NSN for C12934B?
C12934B is cataloged in the U.S. Government catalog under NSN 5340-00-753-9323. 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.