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9540K35 — BUMPER

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

9540K35: BUMPER.

The BUMPER is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC, hole_diameter: 0.188 INCHES NOMINAL IN, overall_height: 0.625 INCHES NOMINAL IN, style_designator: FLAT TOP COUNTERBORED, end_item_identification: FIXT ASSY, TEST A-103, first_counterbore_depth: 0.375 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-565-0635, 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
9540K35
NSN: 5340-01-565-0635
FSC: 5340 — Hardware, Commercial
CAGE: 3A054 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC
hole_diameter0.188 INCHES NOMINAL IN
overall_height0.625 INCHES NOMINAL IN
special_featuresBUMPER HAS METAL WASHER EMBEDDED AT BASE OF RECESS; DUROMETER HARDNESS IS RATRED AT 70A; BUMPER IS ABRASION RESISTANT; TEMPERATURE RANGE FROM -30 DEGREES TO +150 DEGREES FAHRENHEIT A
style_designatorFLAT TOP COUNTERBORED
end_item_identificationFIXT ASSY, TEST A-103
first_counterbore_depth0.375 INCHES NOMINAL IN
first_counterbore_diameter0.562 INCHES NOMINAL IN
outside/top_flange_diameter1.031 INCHES NOMINAL IN
furnished_items_and_quantity1 WASHER
part_name_assigned_by_controlling_agency(INAVY)RUBBER BUMPER WITH UNTHREADED THROUGH HOLE WITH WASHER
NSN5340-01-565-0635
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 9540K35 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
•
FURNISHED ITEMS AND QUANTITY: 1 WASHER
•
OUTSIDE/TOP FLANGE DIAMETER: 1.031 INCHES NOMINAL IN
•
FIRST COUNTERBORE DIAMETER: 0.562 INCHES NOMINAL IN
•
STYLE DESIGNATOR: FLAT TOP COUNTERBORED
•
FIRST COUNTERBORE DEPTH: 0.375 INCHES NOMINAL IN
•
COLOR: BLACK
TECHNICAL CHARACTERISTICS
FURNISHED ITEMS AND QUANTITY1 WASHER
OVERALL HEIGHT0.625 INCHES NOMINAL IN
OUTSIDE/TOP FLANGE DIAMETER1.031 INCHES NOMINAL IN
FIRST COUNTERBORE DIAMETER0.562 INCHES NOMINAL IN
STYLE DESIGNATORFLAT TOP COUNTERBORED
FIRST COUNTERBORE DEPTH0.375 INCHES NOMINAL IN
COLORBLACK
SPECIAL FEATURESBUMPER HAS METAL WASHER EMBEDDED AT BASE OF RECESS; DUROMETER HARDNESS IS RATRED AT 70A; BUMPER IS ABRASION RESISTANT; TEMPERATURE RANGE FROM -30 DEGREES TO +150 DEGREES FAHRENHEIT A
PART NAME ASSIGNED BY CONTROLLING AGENCY(INAVY)RUBBER BUMPER WITH UNTHREADED THROUGH HOLE WITH WASHER
END ITEM IDENTIFICATIONFIXT ASSY, TEST A-103
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 9540K35?
9540K35 is a BUMPER.
What is the NSN for 9540K35?
9540K35 is cataloged in the U.S. Government catalog under NSN 5340-01-565-0635. 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.