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1211-50 — TRANSISTOR

✓ Government record, cited
Equip · ORING SEAL
PRODUCT OVERVIEW

1211-50: TRANSISTOR.

- For telephone and modem flat cable. - Gold flash contact. - Unshielded.

- Selling unit: 50pcs/pack. The equip Modular Plug is made of high-quality materials and a sturdy component for the flat cable deployment. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-230-7246, 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
1211-50
NSN: 5331-00-230-7246
NIINs: 002307246, 010653056
FSC: 5331 — O-ring
CAGE: 77308 — PARCO, LLC (USA)
SPECIFICATIONS
materialPLASTIC ENCLOSURE
overall_width0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
overall_height0.165 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
overall_length0.380 INCHES MINIMUM AND 0.420 INCHES MAXIMUM IN
mounting_methodUNTHREADED HOLE(S)
center_hole_diameter1.346 INCHES MINIMUM AND 1.370 INCHES MAXIMUM IN
cross-sectional_height0.065 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
semiconductor_materialSILICON
mounting_facility_quantity1
terminal_type_and_quantity3 PIN
power_rating_per_characteristic2.0 WATTS MAXIMUM COLLECTOR POWER DISSIPATION
current_rating_per_characteristic6.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
NSN5331-00-230-7246
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1211-50 MFR: Equip ⚠ 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
•
CROSS-SECTIONAL HEIGHT: 0.065 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 1.346 INCHES MINIMUM AND 1.370 INCHES MAXIMUM IN
•
MATERIAL: RUBBER SYNTHETIC
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.065 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
CENTER HOLE DIAMETER1.346 INCHES MINIMUM AND 1.370 INCHES MAXIMUM IN
MATERIALRUBBER SYNTHETIC
SUBSTITUTES & CROSS-REFERENCES 2
663700-124Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
S558-5Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 1211-50?
1211-50 is a TRANSISTOR manufactured by Equip.
What parts can replace 1211-50?
There are 2 known substitutes for 1211-50: 663700-124, S558-5. Substitute compatibility should be verified for your specific system.
What is the NSN for 1211-50?
1211-50 is cataloged in the U.S. Government catalog under NSN 5331-00-230-7246. 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.