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788R — BUMPER

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

788R: BUMPER.

The BUMPER is a the manufacturer industrial component. Key specifications include material: RUBBER, hole_diameter: 0.190 INCHES NOMINAL IN, overall_height: 1.750 INCHES NOMINAL IN, style_designator: FLAT TOP COUNTERBORED, end_item_identification: 5411-01-581-2654;SHELTER,EXPANDABLE, first_counterbore_depth: 0.500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-665-9606, 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
788R
NSN: 5340-01-665-9606
FSC: 5340 — Hardware, Commercial
CAGE: 5AY01 — CAROLINA DATACOM INC (USA)
SPECIFICATIONS
materialRUBBER
hole_diameter0.190 INCHES NOMINAL IN
overall_height1.750 INCHES NOMINAL IN
style_designatorFLAT TOP COUNTERBORED
end_item_identification5411-01-581-2654;SHELTER,EXPANDABLE
first_counterbore_depth0.500 INCHES NOMINAL IN
material_hardness_rating65.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM
first_counterbore_diameter0.370 INCHES NOMINAL IN
outside/top_flange_diameter1.000 INCHES NOMINAL IN
part_name_assigned_by_controlling_agencyDOOR,STOP,RUBBER
NSN5340-01-665-9606
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 788R 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
•
OUTSIDE/TOP FLANGE DIAMETER: 1.000 INCHES NOMINAL IN
•
MATERIAL HARDNESS RATING: 65.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM
•
FIRST COUNTERBORE DIAMETER: 0.370 INCHES NOMINAL IN
•
STYLE DESIGNATOR: FLAT TOP COUNTERBORED
•
FIRST COUNTERBORE DEPTH: 0.500 INCHES NOMINAL IN
•
COLOR: BLACK
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT1.750 INCHES NOMINAL IN
OUTSIDE/TOP FLANGE DIAMETER1.000 INCHES NOMINAL IN
MATERIAL HARDNESS RATING65.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM
FIRST COUNTERBORE DIAMETER0.370 INCHES NOMINAL IN
STYLE DESIGNATORFLAT TOP COUNTERBORED
FIRST COUNTERBORE DEPTH0.500 INCHES NOMINAL IN
COLORBLACK
PART NAME ASSIGNED BY CONTROLLING AGENCYDOOR,STOP,RUBBER
END ITEM IDENTIFICATION5411-01-581-2654;SHELTER,EXPANDABLE
MATERIALRUBBER
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
08020F0505Reference document
Same NSN cross-reference
Reference document — Vendor item drawing 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 788R?
788R is a BUMPER.
What parts can replace 788R?
There is 1 known substitute for 788R: 08020F0505. Substitute compatibility should be verified for your specific system.
What is the NSN for 788R?
788R is cataloged in the U.S. Government catalog under NSN 5340-01-665-9606. 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.