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570541 — SHAFT,COUPLING,PUMP

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

570541: SHAFT,COUPLING,PUMP.

The SHAFT,COUPLING,PUMP is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: HAND TOOLS,NONEDGED,NONPOWERED. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-974-0186, 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
570541
NSN: 5340-00-974-0186
NIINs: 009740186, 011851823, 012362061, 013592811
FSC: 5340 — Hardware, Commercial
CAGE: 73030 — HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE (USA)
SPECIFICATIONS
general_characteristics_item_descriptionHAND TOOLS,NONEDGED,NONPOWERED
NSN5340-00-974-0186
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 570541 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
•
FSC APPLICATION DATA: FUEL CONTROL MAIN,TURBINE ENGINE
•
FIRST STEP DIAMETER: 0.4560 INCHES NOMINAL IN
•
MATERIAL HARDNESS RATING: 302.0 ROCKWELL C MINIMUM AND 372.0 ROCKWELL C MAXIMUM
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END DIAMETER: 0.2600 INCHES MINIMUM AND 0.2900 INCHES MAXIMUM IN
•
DISTANCE FROM END TO FIRST STEP: 0.0500 INCHES NOMINAL IN
•
DESIGN TYPE: SOLID
•
STYLE DESIGNATOR: SEAT
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.0800 INCHES NOMINAL IN
FSC APPLICATION DATAFUEL CONTROL MAIN,TURBINE ENGINE
FIRST STEP DIAMETER0.4560 INCHES NOMINAL IN
MATERIAL HARDNESS RATING302.0 ROCKWELL C MINIMUM AND 372.0 ROCKWELL C MAXIMUM
END DIAMETER0.2600 INCHES MINIMUM AND 0.2900 INCHES MAXIMUM IN
DISTANCE FROM END TO FIRST STEP0.0500 INCHES NOMINAL IN
DESIGN TYPESOLID
STYLE DESIGNATORSEAT
SPHERICAL SEAT TOP RADIUS0.2400 INCHES NOMINAL IN
MATERIALSTEEL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 570541?
570541 is a SHAFT,COUPLING,PUMP.
What is the NSN for 570541?
570541 is cataloged in the U.S. Government catalog under NSN 5340-00-974-0186. 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.