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52316B — SEAT,HELICAL COMPRESSION SPRING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

52316B: SEAT,HELICAL COMPRESSION SPRING.

SEAT,HELICAL COMPRESSION SPRING. Key specifications include material: STEEL, design_type: SOLID, end_diameter: 1.7190 INCHES NOMINAL IN, bore_diameter: 1.3750 INCHES NOMINAL IN, overall_height: 1.3750 INCHES NOMINAL IN, special_features: NOT CASEHARDENED. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-383-6898, 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
52316B
NSN: 5340-00-383-6898
FSC: 5340 — Hardware, Commercial
CAGE: 7PZX0 — FAIRBANKS MORSE, LLC (USA)
SPECIFICATIONS
materialSTEEL
design_typeSOLID
end_diameter1.7190 INCHES NOMINAL IN
bore_diameter1.3750 INCHES NOMINAL IN
overall_height1.3750 INCHES NOMINAL IN
special_featuresNOT CASEHARDENED
style_designatorSEAT
bore_taper_in_deg10.0
first_step_length0.2500 INCHES NOMINAL IN
seat_angle_in_deg25.0
counterbore_length0.1880 INCHES NOMINAL IN
first_step_diameter1.8120 INCHES NOMINAL IN
NSN5340-00-383-6898
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 52316B 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
•
COUNTERSINK ANGLE IN DEG: 10.0
•
FIRST STEP DIAMETER: 1.8120 INCHES NOMINAL IN
•
END DIAMETER: 1.7190 INCHES NOMINAL IN
•
SEAT ANGLE IN DEG: 25.0
•
COUNTERSINK DIAMETER: 1.9380 INCHES NOMINAL IN
•
SECOND END DIAMETER: 1.8750 INCHES NOMINAL IN
•
DISTANCE FROM END TO FIRST STEP: 0.6880 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT1.3750 INCHES NOMINAL IN
COUNTERSINK ANGLE IN DEG10.0
FIRST STEP DIAMETER1.8120 INCHES NOMINAL IN
END DIAMETER1.7190 INCHES NOMINAL IN
SEAT ANGLE IN DEG25.0
COUNTERSINK DIAMETER1.9380 INCHES NOMINAL IN
SECOND END DIAMETER1.8750 INCHES NOMINAL IN
DISTANCE FROM END TO FIRST STEP0.6880 INCHES NOMINAL IN
DESIGN TYPESOLID
STYLE DESIGNATORSEAT
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
22N600PC46Reference document
Same NSN cross-reference
Reference document — Secondary reference
22N605PC46Reference 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 52316B?
52316B is a SEAT,HELICAL COMPRESSION SPRING.
What parts can replace 52316B?
There are 2 known substitutes for 52316B: 22N600PC46, 22N605PC46. Substitute compatibility should be verified for your specific system.
What is the NSN for 52316B?
52316B is cataloged in the U.S. Government catalog under NSN 5340-00-383-6898. 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.