PartsTable
Technical Data Sheet
B20105-1 ✓ Verified by PartsTable
· ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include length: 1.125 INCHES NOMINAL1.125 INCHES NOMINAL IN, diameter: 0.188 INCHES NOMINAL0.188 INCHES NOMINAL IN, style_designator: INTERNALLY THREADED FULL LENGTHINTERNALLY THREADED FULL LENGTH, surface_treatment: CHROMATE OVERALLCHROMATE OVERALL, cross-sectional_shape: HEXAGONHEXAGON. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-095-4305, 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
B20105-1
NSN: 5340-01-095-4305
FSC: 5340
CAGE: 30377 — SMITHS AEROSPACE, INC., ELECTRONIC SYSTEMS-GRAND RAPIDS (USA)
SPECIFICATIONS
length1.125 INCHES NOMINAL1.125 INCHES NOMINAL IN
diameter0.188 INCHES NOMINAL0.188 INCHES NOMINAL IN
materialALUMINUM ALLOY 6061 OR ALUMINUM ALLOY 6061 OR ALUMINUM ALLOY 6063 OR ALUMINUM ALLOY 6063 OR ALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 2011 OVERALLALUMINUM ALLOY 2011 OVERALL
style_designatorINTERNALLY THREADED FULL LENGTHINTERNALLY THREADED FULL LENGTH
surface_treatmentCHROMATE OVERALLCHROMATE OVERALL
cross-sectional_shapeHEXAGONHEXAGON
surface_treatment_document_and_classificationMIL-C-5541, CLASS 1A MIL SPEC SINGLE TREATMENT RESPONSE OVERALLMIL-C-5541, CLASS 1A MIL SPEC SINGLE TREATMENT RESPONSE OVERALL A
NSN5340-01-095-4305
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: B20105-1 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
STYLE DESIGNATOR: INTERNALLY THREADED FULL LENGTHINTERNALLY THREADED FULL LENGTH
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-5541, CLASS 1A MIL SPEC SINGLE TREATMENT RESPONSE OVERALLMIL-C-5541, CLASS 1A MIL SPEC SINGLE TREATMENT RESPONSE OVERALL A
MATERIAL: ALUMINUM ALLOY 6061 OR ALUMINUM ALLOY 6061 OR ALUMINUM ALLOY 6063 OR ALUMINUM ALLOY 6063 OR ALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 2011 OVERALLALUMINUM ALLOY 2011 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-200/8 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-200/8 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-200/9 FED SPEC 2ND MATERIAL RESPONSE OR QQ-A-200/9 FED SPEC 2ND MATERIAL RESPONSE OR QQ-A-225/6 FED SPEC 3RD MATERIAL RESPONSE OR QQ-A-225/6 FED SPEC 3RD MATERIAL RESPONSE OR QQ-A-225/8 FED SPEC 4TH MATERIAL RESPONSE OR QQ-A-225/8 FED SPEC 4TH MATERIAL RESPONSE OR QQ-A-225/3 FED SPEC 5TH MATERIAL RESPONSE OVERALLQQ-A-225/3 FED SPEC 5TH MATERIAL RESPONSE OVERALL
SURFACE TREATMENT: CHROMATE OVERALLCHROMATE OVERALL
LENGTH: 1.125 INCHES NOMINAL1.125 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE: HEXAGONHEXAGON
DIAMETER: 0.188 INCHES NOMINAL0.188 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORINTERNALLY THREADED FULL LENGTHINTERNALLY THREADED FULL LENGTH
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-5541, CLASS 1A MIL SPEC SINGLE TREATMENT RESPONSE OVERALLMIL-C-5541, CLASS 1A MIL SPEC SINGLE TREATMENT RESPONSE OVERALL A
MATERIALALUMINUM ALLOY 6061 OR ALUMINUM ALLOY 6061 OR ALUMINUM ALLOY 6063 OR ALUMINUM ALLOY 6063 OR ALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 2011 OVERALLALUMINUM ALLOY 2011 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-200/8 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-200/8 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-200/9 FED SPEC 2ND MATERIAL RESPONSE OR QQ-A-200/9 FED SPEC 2ND MATERIAL RESPONSE OR QQ-A-225/6 FED SPEC 3RD MATERIAL RESPONSE OR QQ-A-225/6 FED SPEC 3RD MATERIAL RESPONSE OR QQ-A-225/8 FED SPEC 4TH MATERIAL RESPONSE OR QQ-A-225/8 FED SPEC 4TH MATERIAL RESPONSE OR QQ-A-225/3 FED SPEC 5TH MATERIAL RESPONSE OVERALLQQ-A-225/3 FED SPEC 5TH MATERIAL RESPONSE OVERALL
SURFACE TREATMENTCHROMATE OVERALLCHROMATE OVERALL
LENGTH1.125 INCHES NOMINAL1.125 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPEHEXAGONHEXAGON
DIAMETER0.188 INCHES NOMINAL0.188 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
201051Interchangeable
interchangeable cross-reference
interchangeable
2019920Interchangeable
interchangeable cross-reference
interchangeable
SK251-26Interchangeable
interchangeable cross-reference
interchangeable
T93-61Interchangeable
interchangeable cross-reference
interchangeable
8113-A-0256-17Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B20105-1?
B20105-1 is a STANDOFF,THREADED,SPACING.
What parts can replace B20105-1?
There are 5 known substitutes for B20105-1: 201051, 2019920, SK251-26 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B20105-1?
B20105-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-095-4305. This indicates validated use in U.S. government and defense supply chains.
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