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DP-1187 — PLUG,PROTECTIVE,DUST AND MOISTUR

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

DP-1187: PLUG,PROTECTIVE,DUST AND MOISTUR.

PLUG,PROTECTIVE,DUST AND MOISTUR. Key specifications include material: PLASTIC POLYAMIDE NYLON, design_type: FRICTION, overall_diameter: 1.312 INCHES NOMINAL IN, special_features: COLOR BLACK, features_provided: SHOULDER, opening_inside_diameter_for_which_designed: 1.187 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-315-7225, 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
DP-1187
NSN: 5340-01-315-7225
FSC: 5340 — Hardware, Commercial
CAGE: 28520 — HEYCO INC DBA HEYCO PRODUCTS (USA)
SPECIFICATIONS
materialPLASTIC POLYAMIDE NYLON
design_typeFRICTION
overall_diameter1.312 INCHES NOMINAL IN
special_featuresCOLOR BLACK
features_providedSHOULDER
opening_inside_diameter_for_which_designed1.187 INCHES NOMINAL IN
NSN5340-01-315-7225
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: DP-1187 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
•
DESIGN TYPE: FRICTION
•
OVERALL DIAMETER: 1.312 INCHES NOMINAL IN
•
FEATURES PROVIDED: SHOULDER
•
OPENING INSIDE DIAMETER FOR WHICH DESIGNED: 1.187 INCHES NOMINAL IN
•
MATERIAL: PLASTIC POLYAMIDE NYLON
TECHNICAL CHARACTERISTICS
DESIGN TYPEFRICTION
OVERALL DIAMETER1.312 INCHES NOMINAL IN
FEATURES PROVIDEDSHOULDER
OPENING INSIDE DIAMETER FOR WHICH DESIGNED1.187 INCHES NOMINAL IN
SPECIAL FEATURESCOLOR BLACK
MATERIALPLASTIC POLYAMIDE NYLON
SUBSTITUTES & CROSS-REFERENCES 1
2733Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is DP-1187?
DP-1187 is a PLUG,PROTECTIVE,DUST AND MOISTUR.
What parts can replace DP-1187?
There is 1 known substitute for DP-1187: 2733. Substitute compatibility should be verified for your specific system.
What is the NSN for DP-1187?
DP-1187 is cataloged in the U.S. Government catalog under NSN 5340-01-315-7225. 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.