PartsTable
Technical Data Sheet
Download PDF

PR4-3 — PLIERS SET,RETAINING RING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

PR4-3: PLIERS SET,RETAINING RING.

The PLIERS SET,RETAINING RING is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, thread_size: 3/4-27 AND 5/8-27, thread_class: 3B, thread_length: 0.265 INCHES NOMINAL AND 0.375 INCHES NOMINAL IN, overall_length: 1.343 INCHES NOMINAL IN, furnished_items: PLASTIC CASE. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-360-3669, 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
PR4-3
NSN: 4730-00-360-3669
NIINs: 003603669, 014297455, 014540681
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 18163 — EATON CORP CONTROLS DIV (USA)
SPECIFICATIONS
materialCOPPER ALLOY
thread_size3/4-27 AND 5/8-27
thread_class3B
thread_length0.265 INCHES NOMINAL AND 0.375 INCHES NOMINAL IN
overall_length1.343 INCHES NOMINAL IN
furnished_itemsPLASTIC CASE
style_designatorHEXAGON, INTERNAL THREAD, SHOULDERED
thread_directionRIGHT-HAND
component_quantity12
length_to_shoulder0.937 INCHES NOMINAL IN
width_across_flats0.875 INCHES NOMINAL IN
screw_thread_locationINTERNAL
NSN4730-00-360-3669
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: PR4-3 · 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
•
LENGTH TO SHOULDER: 0.937 INCHES NOMINAL IN
•
WIDTH ACROSS FLATS: 0.875 INCHES NOMINAL IN
•
LARGEST INSIDE DIAMETER: 0.750 INCHES NOMINAL IN
•
THREAD LENGTH: 0.265 INCHES NOMINAL AND 0.375 INCHES NOMINAL IN
•
STYLE DESIGNATOR: HEXAGON, INTERNAL THREAD, SHOULDERED
•
SMALLEST OUTSIDE DIAMETER: 0.781 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
LENGTH TO SHOULDER0.937 INCHES NOMINAL IN
WIDTH ACROSS FLATS0.875 INCHES NOMINAL IN
LARGEST INSIDE DIAMETER0.750 INCHES NOMINAL IN
THREAD LENGTH0.265 INCHES NOMINAL AND 0.375 INCHES NOMINAL IN
STYLE DESIGNATORHEXAGON, INTERNAL THREAD, SHOULDERED
OVERALL LENGTH1.343 INCHES NOMINAL IN
SMALLEST OUTSIDE DIAMETER0.781 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
CASEHARDENING INDICATORNOT CASEHARDENED
THREAD SIZE3/4-27 AND 5/8-27
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy PR4-3?
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 PR4-3?
PR4-3 is a PLIERS SET,RETAINING RING.
What is the NSN for PR4-3?
PR4-3 is cataloged in the U.S. Government catalog under NSN 4730-00-360-3669. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — PR4-3

✓ 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.