PartsTable
Technical Data Sheet
PartsTable / MRO / B1-4
B1-4 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

RESISTOR,VARIABLE,NONWIRE WOUND,. Key specifications include material: STEEL OVERALL, unit_type: HEX, body_style: CYLINDRICAL BUSHING MOUNTED, bore_shape: STRAIGHT, case_style: RECESSED, head_style: HEXAGON. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-116-3184, 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
MRO→ MRO_GENERAL→ B1-4
NSN: 5330-00-116-3184
FSC: 5330
CAGE: 30793 — INSINGER MACHINE CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
unit_typeHEX
body_styleCYLINDRICAL BUSHING MOUNTED
bore_shapeSTRAIGHT
case_styleRECESSED
head_styleHEXAGON
seal_width0.188 INCHES NOMINAL IN
body_length0.449 INCHES MAXIMUM IN
design_typeFRICTION
head_height0.658 INCHES MINIMUM AND 0.780 INCHES MAXIMUM IN
shaft_styleROUND
shaft_length3.375 INCHES NOMINAL IN
NSN5330-00-116-3184
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: B1-4 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
•
ACCOMMODATED SHAFT DIAMETER: 1.125 INCHES NOMINAL IN
•
SEAL WIDTH: 0.188 INCHES NOMINAL IN
•
MATERIAL: RUBBER SYNTHETIC SEALING ELEMENT
•
SEALING ELEMENT STYLE: ANGULAR
•
CASE STYLE: RECESSED
TECHNICAL CHARACTERISTICS (FLIS)
ACCOMMODATED SHAFT DIAMETER1.125 INCHES NOMINAL IN
SEAL WIDTH0.188 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
SEALING ELEMENT STYLEANGULAR
MATERIALSTEEL CASE
CASE STYLERECESSED
VERIFIED SUBSTITUTES & CROSS-REFERENCES

No verified substitutes available.

LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B1-4?
B1-4 is a RESISTOR,VARIABLE,NONWIRE WOUND,. It is classified as a MRO (MRO_GENERAL).
What is the NSN for B1-4?
B1-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-116-3184. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026