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S256-1 — IC,TRANSDUCER VAL

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

S256-1: IC,TRANSDUCER VAL.

The IC,TRANSDUCER VAL is a the manufacturer industrial component. Key specifications include special_features: TRANDUCER VALVE DRIVE, end_item_identification: C-130 ACFT, criticality_code_justification: FEAT. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-948-0737, 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
S256-1
NSN: 5310-00-948-0737
NIINs: 009480737, 011901421, 015997170
FSC: 5310 — Nuts and Washers
CAGE: 56878 — SPS TECHNOLOGIES, LLC DBA PB FASTENERS (USA)
SPECIFICATIONS
special_featuresTRANDUCER VALVE DRIVE
end_item_identificationC-130 ACFT
criticality_code_justificationFEAT
NSN5310-00-948-0737
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: S256-1 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
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LUBRICATION: SOLUBLE LUBRICANT
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
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THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
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TEMP RATING: 450.0 FAHRENHEIT NOMINAL DEGF
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HARDNESS RATING: 42.0 ROCKWELL C NOMINAL
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THREAD DIRECTION: RIGHT-HAND
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NOMINAL THREAD SIZE: 0.086 INCHES IN
•
NUT DIAMETER: 0.184 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
LUBRICATIONSOLUBLE LUBRICANT
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
TEMP RATING450.0 FAHRENHEIT NOMINAL DEGF
HARDNESS RATING42.0 ROCKWELL C NOMINAL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.086 INCHES IN
NUT DIAMETER0.184 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
PILOT DIAMETER0.132 INCHES MAXIMUM IN
PILOT LENGTH0.018 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 1
1858126-1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is S256-1?
S256-1 is a IC,TRANSDUCER VAL.
What parts can replace S256-1?
There is 1 known substitute for S256-1: 1858126-1. Substitute compatibility should be verified for your specific system.
What is the NSN for S256-1?
S256-1 is cataloged in the U.S. Government catalog under NSN 5310-00-948-0737. 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.