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GBA-20 — BUMPER

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

GBA-20: BUMPER.

The BUMPER is a the manufacturer industrial component. Key specifications include material: RUBBER, hole_diameter: 0.800 INCHES NOMINAL IN, overall_width: 4.560 INCHES NOMINAL IN, overall_length: 3.980 INCHES NOMINAL IN, special_features: MOUNT BOLT 3/4SFH CAP SCREW,RATED ENERGY CAPACITY 17000LB LBS, bottom_flange_width: 3.930 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-656-1159, 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
GBA-20
NSN: 5340-01-656-1159
FSC: 5340 — Hardware, Commercial
CAGE: 38KH8 — MINER ELASTOMER PRODUCTS CORPORATION (USA)
SPECIFICATIONS
materialRUBBER
hole_diameter0.800 INCHES NOMINAL IN
overall_width4.560 INCHES NOMINAL IN
overall_length3.980 INCHES NOMINAL IN
special_featuresMOUNT BOLT 3/4SFH CAP SCREW,RATED ENERGY CAPACITY 17000LB LBS
bottom_flange_width3.930 INCHES NOMINAL IN
mounting_hole_diameter0.800 INCHES NOMINAL IN
end_item_identification5420-01-616-6046
NSN5340-01-656-1159
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: GBA-20 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: 0.800 INCHES NOMINAL IN
•
BOTTOM FLANGE WIDTH: 3.930 INCHES NOMINAL IN
•
MATERIAL: RUBBER
•
HOLE DIAMETER: 0.800 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
MOUNTING HOLE DIAMETER0.800 INCHES NOMINAL IN
OVERALL LENGTH3.980 INCHES NOMINAL IN
OVERALL WIDTH4.560 INCHES NOMINAL IN
BOTTOM FLANGE WIDTH3.930 INCHES NOMINAL IN
SPECIAL FEATURESMOUNT BOLT 3/4SFH CAP SCREW,RATED ENERGY CAPACITY 17000LB LBS
END ITEM IDENTIFICATION5420-01-616-6046
MATERIALRUBBER
HOLE DIAMETER0.800 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 GBA-20?
GBA-20 is a BUMPER.
What is the NSN for GBA-20?
GBA-20 is cataloged in the U.S. Government catalog under NSN 5340-01-656-1159. 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.