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PartsTable / COMPONENT / 161139
161139 ✓ 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 SPHERE MOLD,GLASS BACK is a the manufacturer industrial component. Key specifications include color: BLACK, width: 0.500 INCHES IN, length: 15.000 YARDS, material: PLASTIC POLYAMIDE NYLON LOCATION NOT OTHERWISE SPECIFIED, special_features: CARTIDGE; 4 MIL,HIGH DENSISTY, type/model_designation: EPSON AMERICA INC.. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-817-0723, 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
161139
NSN: 5310-00-817-0723
FSC: 5310
CAGE: 57712 — TELEMECHANICS INC (USA)
SPECIFICATIONS
colorBLACK
width0.500 INCHES IN
length15.000 YARDS
materialPLASTIC POLYAMIDE NYLON LOCATION NOT OTHERWISE SPECIFIED
special_featuresCARTIDGE; 4 MIL,HIGH DENSISTY
type/model_designationEPSON AMERICA INC.
end_item_identificationLQ-2500 AND LQ-2550
NSN5310-00-817-0723
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 161139 · 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
•
BOSS DIAMETER: 0.187 INCHES NOMINAL OVERALL IN
•
CROSS-SECTIONAL SHAPE: ROUND NUT
•
NUT LENGTH: 0.104 INCHES NOMINAL IN
•
THREAD CLASS: 3B
•
NOMINAL THREAD SIZE: 0.138 INCHES IN
•
THREAD SERIES: UNF
•
BOSS THICKNESS: 0.052 INCHES NOMINAL OVERALL IN
TECHNICAL CHARACTERISTICS (FLIS)
BOSS DIAMETER0.187 INCHES NOMINAL OVERALL IN
CROSS-SECTIONAL SHAPEROUND NUT
NUT LENGTH0.104 INCHES NOMINAL IN
THREAD CLASS3B
NOMINAL THREAD SIZE0.138 INCHES IN
THREAD SERIESUNF
BOSS THICKNESS0.052 INCHES NOMINAL OVERALL IN
CROSS-SECTIONAL SHAPEHEXAGONAL FLANGE
MATERIALSTEEL OVERALL
SURFACE TREATMENTNICKEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
7762Interchangeable
interchangeable cross-reference
interchangeable
BM220Interchangeable
interchangeable cross-reference
interchangeable
7756Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 161139?
161139 is a SPHERE MOLD,GLASS BACK.
What parts can replace 161139?
There are 3 known substitutes for 161139: 7762, BM220, 7756. Substitute compatibility should be verified for your specific system.
Is 161139 still available?
161139 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026