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BACP20B54 — BUTTON,PLUG

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

BACP20B54: BUTTON,PLUG.

The BUTTON,PLUG is a the manufacturer industrial component. Key specifications include material: STEEL, head_height: 0.094 INCHES NOMINAL IN, overall_height: 0.406 INCHES NOMINAL IN, style_designator: STANDARD, surface_treatment: CADMIUM, head_outside_diameter: 1.562 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-685-5725, 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
BACP20B54
NSN: 5340-00-685-5725
FSC: 5340 — Hardware, Commercial
CAGE: 81205 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL
head_height0.094 INCHES NOMINAL IN
overall_height0.406 INCHES NOMINAL IN
prong_quantity6
style_designatorSTANDARD
surface_treatmentCADMIUM
head_outside_diameter1.562 INCHES NOMINAL IN
prong_outside_diameter1.391 INCHES NOMINAL IN
hole_accommodation_diameter1.375 INCHES NOMINAL IN
material_accommodated_thickness0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN
NSN5340-00-685-5725
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: BACP20B54 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
•
HEAD HEIGHT: 0.094 INCHES NOMINAL IN
•
HOLE ACCOMMODATION DIAMETER: 1.375 INCHES NOMINAL IN
•
MATERIAL ACCOMMODATED THICKNESS: 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: STANDARD
•
PRONG OUTSIDE DIAMETER: 1.391 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM
•
HEAD OUTSIDE DIAMETER: 1.562 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.406 INCHES NOMINAL IN
HEAD HEIGHT0.094 INCHES NOMINAL IN
HOLE ACCOMMODATION DIAMETER1.375 INCHES NOMINAL IN
MATERIAL ACCOMMODATED THICKNESS0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN
STYLE DESIGNATORSTANDARD
PRONG OUTSIDE DIAMETER1.391 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM
HEAD OUTSIDE DIAMETER1.562 INCHES NOMINAL IN
MATERIALSTEEL
PRONG QUANTITY6
SUBSTITUTES & CROSS-REFERENCES 5
8872221-104Reference document
Same NSN cross-reference
Reference document — Secondary reference
5-87878-2Reference document
Same NSN cross-reference
Reference document — Secondary reference
BACP0B-54Reference document
Same NSN cross-reference
Reference document — Secondary reference
SS48132Reference document
Same NSN cross-reference
Reference document — Secondary reference
8SS-48132Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is BACP20B54?
BACP20B54 is a BUTTON,PLUG.
What parts can replace BACP20B54?
There are 5 known substitutes for BACP20B54: 8872221-104, 5-87878-2, BACP0B-54 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for BACP20B54?
BACP20B54 is cataloged in the U.S. Government catalog under NSN 5340-00-685-5725. 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.