PartsTable
Technical Data Sheet
Download PDF

A7287 — COIL,RADIO FREQUENCY

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

A7287: COIL,RADIO FREQUENCY.

The COIL,RADIO FREQUENCY is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL, body_width: 4.50 INCHES NOMINAL IN, seal_width: 0.250 INCHES NOMINAL IN, body_height: 1.75 INCHES NOMINAL IN, body_length: 6.00 INCHES NOMINAL IN, inclosure_type: FULLY INCLOSED. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-511-8770, 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
A7287
NSN: 5330-01-511-8770
NIINs: 015118770, 016801615
FSC: 5330 — Packing and Gasket Materials
CAGE: 12437 — THERN INC (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
body_width4.50 INCHES NOMINAL IN
seal_width0.250 INCHES NOMINAL IN
body_height1.75 INCHES NOMINAL IN
body_length6.00 INCHES NOMINAL IN
inclosure_typeFULLY INCLOSED
housing_bore_diameter1.874 INCHES NOMINAL IN
reliability_indicatorNOT ESTABLISHED
end_item_identification5840 - 016032838
terminal_type_and_quantity4 CONNECTOR, PLUG AND 3 THREADED STUD
accommodated_shaft_diameter1.125 INCHES NOMINAL IN
part_name_assigned_by_controlling_agencyEMI FILTER
NSN5330-01-511-8770
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A7287 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
•
SEAL WIDTH: 0.250 INCHES NOMINAL IN
•
HOUSING BORE DIAMETER: 1.874 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT DIAMETER: 1.125 INCHES NOMINAL IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
TECHNICAL CHARACTERISTICS
SEAL WIDTH0.250 INCHES NOMINAL IN
HOUSING BORE DIAMETER1.874 INCHES NOMINAL IN
ACCOMMODATED SHAFT DIAMETER1.125 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYOIL SEAL
END ITEM IDENTIFICATIONWORM GEAR HAND WINCH MODEL 4WM2
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
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
Ready to buy A7287?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is A7287?
A7287 is a COIL,RADIO FREQUENCY.
What is the NSN for A7287?
A7287 is cataloged in the U.S. Government catalog under NSN 5330-01-511-8770. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — A7287

✓ 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.