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S189-12 — CLIP,SPRING TENSION

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

S189-12: CLIP,SPRING TENSION.

The CLIP,SPRING TENSION is a the manufacturer industrial component. Key specifications include width: 0.500 INCHES NOMINAL IN, length: 0.750 INCHES NOMINAL IN, material: STEEL COMP 1095 OVERALL, overall_height: 1.120 INCHES NOMINAL IN, mounting_method: UNTHREADED HOLE(S), surface_treatment: CADMIUM OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-030-4976, 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
S189-12
NSN: 5340-01-030-4976
FSC: 5340 — Hardware, Commercial
CAGE: 18076 — UMPCO, INC. DBA UMPCO INC (USA)
SPECIFICATIONS
width0.500 INCHES NOMINAL IN
length0.750 INCHES NOMINAL IN
materialSTEEL COMP 1095 OVERALL
overall_height1.120 INCHES NOMINAL IN
mounting_methodUNTHREADED HOLE(S)
surface_treatmentCADMIUM OVERALL
material_thickness0.025 INCHES NOMINAL IN
loop/holding_dimension0.820 INCHES NOMINAL IN
distance_from_loop_center_to_end0.690 INCHES NOMINAL IN
material_document_and_classificationMIL-S-7947 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationQQ-P-416,TYPE 1,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5340-01-030-4976
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: S189-12 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
•
LENGTH: 0.750 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TYPE 1,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
MOUNTING METHOD: UNTHREADED HOLE(S)
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-7947 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
LOOP/HOLDING DIMENSION: 0.820 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.025 INCHES NOMINAL IN
•
DISTANCE FROM LOOP CENTER TO END: 0.690 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT1.120 INCHES NOMINAL IN
LENGTH0.750 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 1,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
MOUNTING METHODUNTHREADED HOLE(S)
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-7947 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
LOOP/HOLDING DIMENSION0.820 INCHES NOMINAL IN
MATERIAL THICKNESS0.025 INCHES NOMINAL IN
DISTANCE FROM LOOP CENTER TO END0.690 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OVERALL
WIDTH0.500 INCHES NOMINAL IN
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
BACC15AF12Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
RCS0014-12Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 S189-12?
S189-12 is a CLIP,SPRING TENSION.
What parts can replace S189-12?
There are 2 known substitutes for S189-12: BACC15AF12, RCS0014-12. Substitute compatibility should be verified for your specific system.
What is the NSN for S189-12?
S189-12 is cataloged in the U.S. Government catalog under NSN 5340-01-030-4976. 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.