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BS1194PC191 — SEAT,HELICAL COMPRESSION SPRING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

BS1194PC191: SEAT,HELICAL COMPRESSION SPRING.

SEAT,HELICAL COMPRESSION SPRING. Key specifications include material: COPPER ALLOY 923 OR COPPER ALLOY 903, design_type: SOLID, end_diameter: 1.3750 INCHES NOMINAL IN, bore_diameter: 0.6880 INCHES NOMINAL IN, overall_height: 0.9380 INCHES NOMINAL IN, style_designator: SEAT. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-398-9497, 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
BS1194PC191
NSN: 5340-00-398-9497
FSC: 5340 — Hardware, Commercial
CAGE: 63857 — CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS (USA)
SPECIFICATIONS
materialCOPPER ALLOY 923 OR COPPER ALLOY 903
design_typeSOLID
end_diameter1.3750 INCHES NOMINAL IN
bore_diameter0.6880 INCHES NOMINAL IN
overall_height0.9380 INCHES NOMINAL IN
style_designatorSEAT
first_step_diameter2.3750 INCHES NOMINAL IN
countersink_diameter0.1880 INCHES NOMINAL IN
distance_from_end_to_first_step0.5000 INCHES NOMINAL IN
material_document_and_classificationMIL-B-16540,GRADE B MIL SPEC SINGLE MATERIAL RESPONSE
NSN5340-00-398-9497
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: BS1194PC191 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: 2.3750 INCHES NOMINAL IN
•
END DIAMETER: 1.3750 INCHES NOMINAL IN
•
COUNTERSINK DIAMETER: 0.1880 INCHES NOMINAL IN
•
DISTANCE FROM END TO FIRST STEP: 0.5000 INCHES NOMINAL IN
•
DESIGN TYPE: SOLID
•
STYLE DESIGNATOR: SEAT
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-B-16540,GRADE B MIL SPEC SINGLE MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.9380 INCHES NOMINAL IN
FIRST STEP DIAMETER2.3750 INCHES NOMINAL IN
END DIAMETER1.3750 INCHES NOMINAL IN
COUNTERSINK DIAMETER0.1880 INCHES NOMINAL IN
DISTANCE FROM END TO FIRST STEP0.5000 INCHES NOMINAL IN
DESIGN TYPESOLID
STYLE DESIGNATORSEAT
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-B-16540,GRADE B MIL SPEC SINGLE MATERIAL RESPONSE
BORE DIAMETER0.6880 INCHES NOMINAL IN
MATERIALCOPPER ALLOY 923 OR COPPER ALLOY 903
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 1
BS1195PC191Reference 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 BS1194PC191?
BS1194PC191 is a SEAT,HELICAL COMPRESSION SPRING.
What parts can replace BS1194PC191?
There is 1 known substitute for BS1194PC191: BS1195PC191. Substitute compatibility should be verified for your specific system.
What is the NSN for BS1194PC191?
BS1194PC191 is cataloged in the U.S. Government catalog under NSN 5340-00-398-9497. 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.