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Technical Data Sheet

BP-1 1/8 — CAPLUG D281

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

BP-1 1/8: CAPLUG D281.

The CAPLUG D281 is a the manufacturer industrial component. Key specifications include material: PLASTIC, POLYETHYLENE (PP), overall_height: 0.430 INCHES NOMINAL IN, head_outside_diameter: 1.530 INCHES NOMINAL IN, end_item_identification: 61 QS II, AIRCRAFT ARRESTING SYSTEM, head_opening_inside_diameter: 1.107 INCHES MINIMUM AND 1.155 INCHES MAXIMUM IN, material_accommodated_thickness: 0.020 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-189-2780, 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
BP-1 1/8
NSN: 5340-01-189-2780
NIINs: 011892780, 015497482
FSC: 5340 — Hardware, Commercial
CAGE: 99017 — CAPLUGS LLC DBA MOKON DIV CAPLUGS (USA)
SPECIFICATIONS
materialPLASTIC, POLYETHYLENE (PP)
overall_height0.430 INCHES NOMINAL IN
head_outside_diameter1.530 INCHES NOMINAL IN
end_item_identification61 QS II, AIRCRAFT ARRESTING SYSTEM
head_opening_inside_diameter1.107 INCHES MINIMUM AND 1.155 INCHES MAXIMUM IN
material_accommodated_thickness0.020 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
part_name_assigned_by_controlling_agencyCAPLUGS DIV D281
NSN5340-01-189-2780
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: BP-1 1/8 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
•
MATERIAL ACCOMMODATED THICKNESS: 0.020 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
•
HEAD OPENING INSIDE DIAMETER: 1.107 INCHES MINIMUM AND 1.155 INCHES MAXIMUM IN
•
HEAD OUTSIDE DIAMETER: 1.530 INCHES NOMINAL IN
•
MATERIAL: PLASTIC, POLYETHYLENE (PP)
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.430 INCHES NOMINAL IN
MATERIAL ACCOMMODATED THICKNESS0.020 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
HEAD OPENING INSIDE DIAMETER1.107 INCHES MINIMUM AND 1.155 INCHES MAXIMUM IN
HEAD OUTSIDE DIAMETER1.530 INCHES NOMINAL IN
MATERIALPLASTIC, POLYETHYLENE (PP)
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 BP-1 1/8?
BP-1 1/8 is a CAPLUG D281.
What is the NSN for BP-1 1/8?
BP-1 1/8 is cataloged in the U.S. Government catalog under NSN 5340-01-189-2780. 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.