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56-363 — PROTECTOR,ANTENNA

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

56-363: PROTECTOR,ANTENNA.

The PROTECTOR,ANTENNA is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC OVERALL, overall_width: 4.406 INCHES NOMINAL IN, aperture_width: 4.126 INCHES NOMINAL IN, overall_length: 8.156 INCHES NOMINAL IN, aperture_length: 7.876 INCHES NOMINAL IN, hardness_rating: 45.0 SHORE DUROMETER A MINIMUM AND 55.0 SHORE DUROMETER A MAXIMUM OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-526-5997, 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
56-363
NSN: 5330-00-526-5997
NIINs: 005265997, 015561254
FSC: 5330 — Packing and Gasket Materials
CAGE: 56232 — LOCKHEED MARTIN CORPORATION DIV RMS - MITCHEL FIELD (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC OVERALL
overall_width4.406 INCHES NOMINAL IN
aperture_width4.126 INCHES NOMINAL IN
overall_length8.156 INCHES NOMINAL IN
aperture_length7.876 INCHES NOMINAL IN
hardness_rating45.0 SHORE DUROMETER A MINIMUM AND 55.0 SHORE DUROMETER A MAXIMUM OVERALL
style_designatorNON-CIRCULAR
fsc_application_dataNAVIGATIONAL INSTRUMENT
inside_corner_radius0.380 INCHES NOMINAL IN
outside_corner_radius0.520 INCHES NOMINAL IN
end_item_identification1550-01-549-5291;RAVEN UNMANNEDED AERIAL VEHICLE (UAV) DRONE SYSTEM
cross-sectional_thickness0.175 INCHES NOMINAL IN
NSN5330-00-526-5997
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 56-363 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
•
FSC APPLICATION DATA: NAVIGATIONAL INSTRUMENT
•
CROSS-SECTIONAL THICKNESS: 0.175 INCHES NOMINAL IN
•
INSIDE CORNER RADIUS: 0.380 INCHES NOMINAL IN
•
HARDNESS RATING: 45.0 SHORE DUROMETER A MINIMUM AND 55.0 SHORE DUROMETER A MAXIMUM OVERALL
•
STYLE DESIGNATOR: NON-CIRCULAR
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
TECHNICAL CHARACTERISTICS
FSC APPLICATION DATANAVIGATIONAL INSTRUMENT
CROSS-SECTIONAL THICKNESS0.175 INCHES NOMINAL IN
INSIDE CORNER RADIUS0.380 INCHES NOMINAL IN
HARDNESS RATING45.0 SHORE DUROMETER A MINIMUM AND 55.0 SHORE DUROMETER A MAXIMUM OVERALL
STYLE DESIGNATORNON-CIRCULAR
OVERALL LENGTH8.156 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OVERALL WIDTH4.406 INCHES NOMINAL IN
APERTURE WIDTH4.126 INCHES NOMINAL IN
APERTURE LENGTH7.876 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
D371Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 56-363?
56-363 is a PROTECTOR,ANTENNA.
What parts can replace 56-363?
There is 1 known substitute for 56-363: D371. Substitute compatibility should be verified for your specific system.
What is the NSN for 56-363?
56-363 is cataloged in the U.S. Government catalog under NSN 5330-00-526-5997. This indicates validated use in U.S. government and defense supply chains.
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