PartsTable
Technical Data Sheet
103-20 ✓ Verified by PartsTable
Trefl · MRO · MRO_GENERAL
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

Premium quality is achieved by using appropriate thick cardboard, a special non-reflective layer, and puzzle pieces’ perfect fitting. Key specifications include angle: 36.0 DEGREES, color: BLUE, material: PLASTIC VINYL COVER, slot_type: TITLE, thickness: 0.013 INCHES MINIMUM AND 0.017 INCHES MAXIMUM IN, head_style: HEXAGON. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-088-1251, 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 103-20
NSN: 5310-00-088-1251
FSC: 5310
CAGE: 72962 — HARVARD INDUSTRIES INC (USA)
SPECIFICATIONS
angle36.0 DEGREES
colorBLUE
materialPLASTIC VINYL COVER
slot_typeTITLE
thickness0.013 INCHES MINIMUM AND 0.017 INCHES MAXIMUM IN
head_styleHEXAGON
point_typeSPLIT
port_styleFLARE
cover_colorWHITE
design_typeNONSEPARABLE
head_height0.096 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
point_angle135.0 DEGREES NOMINAL
NSN5310-00-088-1251
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 103-20 · Trefl ⚠ 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
203850Interchangeable
interchangeable cross-reference
interchangeable
AS103309Interchangeable
interchangeable cross-reference
interchangeable
131245Interchangeable
interchangeable cross-reference
interchangeable
10320Interchangeable
interchangeable cross-reference
interchangeable
CD322517Interchangeable
interchangeable cross-reference
interchangeable
322517-01Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
Ready to buy 103-20?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 103-20?
103-20 is a CYLINDER ASSEMBLY,ACTUATING,LINE manufactured by Trefl. It is classified as a MRO (MRO_GENERAL).
What parts can replace 103-20?
There are 27 known substitutes for 103-20: 203850, AS103309, 131245 and 24 more. Substitute compatibility should be verified for your specific system.
Is 103-20 still available?
103-20 is currently cancelled.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 103-20