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GBR-5 — BUMPER

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

GBR-5: BUMPER.

The BUMPER is a the manufacturer industrial component. Key specifications include material: RUBBER, overall_width: 1.70 INCHES NOMINAL IN, overall_height: 2.17 INCHES NOMINAL IN, special_features: ONE SCREW MOUNTS THIS BUMPER TO ANY SURFACE;FREE BULGE DIAMETER 2.48, mounting_hole_diameter: 0.22 INCHES NOMINAL IN, end_item_identification: SHELTER,EXPANDABLE 5411-01-653-4334. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-681-5958, 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
GBR-5
NSN: 5340-01-681-5958
FSC: 5340 — Hardware, Commercial
CAGE: 38KH8 — MINER ELASTOMER PRODUCTS CORPORATION (USA)
SPECIFICATIONS
materialRUBBER
overall_width1.70 INCHES NOMINAL IN
overall_height2.17 INCHES NOMINAL IN
special_featuresONE SCREW MOUNTS THIS BUMPER TO ANY SURFACE;FREE BULGE DIAMETER 2.48
mounting_hole_diameter0.22 INCHES NOMINAL IN
end_item_identificationSHELTER,EXPANDABLE 5411-01-653-4334
part_name_assigned_by_controlling_agencyGENERAL BUMPER
NSN5340-01-681-5958
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: GBR-5 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
•
MOUNTING HOLE DIAMETER: 0.22 INCHES NOMINAL IN
•
MATERIAL: RUBBER
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT2.17 INCHES NOMINAL IN
MOUNTING HOLE DIAMETER0.22 INCHES NOMINAL IN
OVERALL WIDTH1.70 INCHES NOMINAL IN
SPECIAL FEATURESONE SCREW MOUNTS THIS BUMPER TO ANY SURFACE;FREE BULGE DIAMETER 2.48
PART NAME ASSIGNED BY CONTROLLING AGENCYGENERAL BUMPER
END ITEM IDENTIFICATIONSHELTER,EXPANDABLE 5411-01-653-4334
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

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 GBR-5?
GBR-5 is a BUMPER.
What is the NSN for GBR-5?
GBR-5 is cataloged in the U.S. Government catalog under NSN 5340-01-681-5958. 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.