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Technical Data Sheet
PartsTable / COMPONENT / 103139-4
103139-4 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The WASHER,RECESSED is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL, recess_depth: 0.060 INCHES NOMINAL IN, hole_diameter: 0.250 INCHES NOMINAL IN, overall_height: 0.080 INCHES NOMINAL IN, outside_diameter: 0.420 INCHES NOMINAL IN, special_features: COLOR NATURAL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-775-5245, 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
103139-4
NSN: 5310-00-775-5245
FSC: 5310
CAGE: 15057 — GULTON INDUSTRIES INC MEASUREMENT AND CONTROL SYSTEMS DIV (USA)
SPECIFICATIONS
materialPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
recess_depth0.060 INCHES NOMINAL IN
hole_diameter0.250 INCHES NOMINAL IN
overall_height0.080 INCHES NOMINAL IN
outside_diameter0.420 INCHES NOMINAL IN
special_featuresCOLOR NATURAL
style_designatorRECESSED
material_thickness0.020 INCHES NOMINAL IN
NSN5310-00-775-5245
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 103139-4 · 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
•
OUTSIDE DIAMETER: 0.420 INCHES NOMINAL IN
•
RECESS DEPTH: 0.060 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.250 INCHES NOMINAL IN
•
STYLE DESIGNATOR: RECESSED
•
MATERIAL THICKNESS: 0.020 INCHES NOMINAL IN
•
MATERIAL: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER0.420 INCHES NOMINAL IN
RECESS DEPTH0.060 INCHES NOMINAL IN
HOLE DIAMETER0.250 INCHES NOMINAL IN
OVERALL HEIGHT0.080 INCHES NOMINAL IN
STYLE DESIGNATORRECESSED
MATERIAL THICKNESS0.020 INCHES NOMINAL IN
SPECIAL FEATURESCOLOR NATURAL
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
99D8B-QInterchangeable
interchangeable cross-reference
interchangeable
D5B14ALInterchangeable
interchangeable cross-reference
interchangeable
10823Interchangeable
interchangeable cross-reference
interchangeable
B94.9 2-56 UNC HS G H1Interchangeable
interchangeable cross-reference
interchangeable
C57029Interchangeable
interchangeable cross-reference
interchangeable
562CX5EBA102EC151KInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 103139-4?
103139-4 is a WASHER,RECESSED.
What parts can replace 103139-4?
There are 22 known substitutes for 103139-4: 99D8B-Q, D5B14AL, 10823 and 19 more. Substitute compatibility should be verified for your specific system.
Is 103139-4 still available?
103139-4 is currently cancelled.
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PartsTable Design LLC · partstable.com
Last verified: July 2026