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2638629 — SEAT,HELICAL COMPRESSION SPRING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

2638629: SEAT,HELICAL COMPRESSION SPRING.

SEAT,HELICAL COMPRESSION SPRING. Key specifications include material: STEEL CORROSION RESISTING, end_diameter: 1.0100 INCHES NOMINAL IN, bore_diameter: 0.5000 INCHES NOMINAL IN, overall_height: 0.4500 INCHES NOMINAL IN, depression_depth: 0.0500 INCHES NOMINAL IN, style_designator: SEAT. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-931-5131, 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
2638629
NSN: 5340-00-931-5131
FSC: 5340 — Hardware, Commercial
CAGE: 06848 — HONEYWELL INTERNATIONAL INC DIV AEROSPACE-SOUTH BEND (BENDIX DR) (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
end_diameter1.0100 INCHES NOMINAL IN
bore_diameter0.5000 INCHES NOMINAL IN
overall_height0.4500 INCHES NOMINAL IN
depression_depth0.0500 INCHES NOMINAL IN
style_designatorSEAT
counterbore_length0.2200 INCHES NOMINAL IN
first_step_diameter1.5900 INCHES NOMINAL IN
counterbore_diameter1.2900 INCHES NOMINAL IN
fsc_application_dataAIRCRAFT ENGINE FUEL CONTROL
spherical_seat_top_radius0.0100 INCHES NOMINAL IN
distance_from_end_to_first_step0.1900 INCHES NOMINAL IN
NSN5340-00-931-5131
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2638629 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
•
DEPRESSION DEPTH: 0.0500 INCHES NOMINAL IN
•
FSC APPLICATION DATA: AIRCRAFT ENGINE FUEL CONTROL
•
FIRST STEP DIAMETER: 1.5900 INCHES NOMINAL IN
•
END DIAMETER: 1.0100 INCHES NOMINAL IN
•
DISTANCE FROM END TO FIRST STEP: 0.1900 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SEAT
•
COUNTERBORE LENGTH: 0.2200 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
DEPRESSION DEPTH0.0500 INCHES NOMINAL IN
OVERALL HEIGHT0.4500 INCHES NOMINAL IN
FSC APPLICATION DATAAIRCRAFT ENGINE FUEL CONTROL
FIRST STEP DIAMETER1.5900 INCHES NOMINAL IN
END DIAMETER1.0100 INCHES NOMINAL IN
DISTANCE FROM END TO FIRST STEP0.1900 INCHES NOMINAL IN
STYLE DESIGNATORSEAT
COUNTERBORE LENGTH0.2200 INCHES NOMINAL IN
COUNTERBORE DIAMETER1.2900 INCHES NOMINAL IN
SPHERICAL SEAT TOP RADIUS0.0100 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

No substitute or cross-reference records for this part.

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 2638629?
2638629 is a SEAT,HELICAL COMPRESSION SPRING.
What is the NSN for 2638629?
2638629 is cataloged in the U.S. Government catalog under NSN 5340-00-931-5131. This indicates validated use in U.S. government and defense supply chains.
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