PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 20-2LM4
20-2LM4 ✓ Verified by PartsTable
— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The INVERTED NUT,TUBE COUPLING is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, thread_size: 7/16-20, overall_length: 0.688 INCHES NOMINAL IN, special_features: MATERIAL IS TYPE 316 STAINLESS STEEL AND IS A MEDIUM PRESSURE CONNECTION 20,000 PSI SERVICE, style_designator: INVERTED NUT, TUBE, COMPRESSION, thread_direction: RIGHT-HAND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-561-4663, 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
20-2LM4
NSN: 4730-01-561-4663
FSC: 4730
CAGE: 07097 — GRACO HIGH PRESSURE EQUIPMENT INC. DBA HIGH PRESSURE EQUIPMENT COMPANY (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
thread_size7/16-20
overall_length0.688 INCHES NOMINAL IN
special_featuresMATERIAL IS TYPE 316 STAINLESS STEEL AND IS A MEDIUM PRESSURE CONNECTION 20,000 PSI SERVICE
style_designatorINVERTED NUT, TUBE, COMPRESSION
thread_directionRIGHT-HAND
width_across_flats0.500 INCHES NOMINAL IN
smallest_inside_diameter0.250 INCHES NOMINAL IN
screw_thread_series_designatorUNF
part_name_assigned_by_controlling_agencyGLAND, SS, DH200, 7/16-20
tube_outside_diameter_for_which_designed0.250 INCHES NOMINAL IN
NSN4730-01-561-4663
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 20-2LM4 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SCREW THREAD SERIES DESIGNATOR: UNF
•
THREAD SIZE: 7/16-20
•
THREAD DIRECTION: RIGHT-HAND
•
WIDTH ACROSS FLATS: 0.500 INCHES NOMINAL IN
•
MATERIAL: STEEL CORROSION RESISTING
•
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 0.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SCREW THREAD SERIES DESIGNATORUNF
THREAD SIZE7/16-20
THREAD DIRECTIONRIGHT-HAND
WIDTH ACROSS FLATS0.500 INCHES NOMINAL IN
MATERIALSTEEL CORROSION RESISTING
PART NAME ASSIGNED BY CONTROLLING AGENCYGLAND, SS, DH200, 7/16-20
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED0.250 INCHES NOMINAL IN
OVERALL LENGTH0.688 INCHES NOMINAL IN
SMALLEST INSIDE DIAMETER0.250 INCHES NOMINAL IN
STYLE DESIGNATORINVERTED NUT, TUBE, COMPRESSION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
X2045F6Interchangeable
interchangeable cross-reference
interchangeable
3650-2Interchangeable
interchangeable cross-reference
interchangeable
GT800K2Interchangeable
interchangeable cross-reference
interchangeable
1FC158Interchangeable
interchangeable cross-reference
interchangeable
3205-7009-5Interchangeable
interchangeable cross-reference
interchangeable
100272Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 20-2LM4?
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 20-2LM4?
20-2LM4 is a INVERTED NUT,TUBE COUPLING.
What parts can replace 20-2LM4?
There are 6 known substitutes for 20-2LM4: X2045F6, 3650-2, GT800K2 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 20-2LM4?
20-2LM4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-561-4663. This indicates validated use in U.S. government and defense supply chains.
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 — 20-2LM4

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026