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190531-1 — RING,RETAINING

✓ Government record, cited
Nobo · BOLT SCREW
PRODUCT OVERVIEW

190531-1: RING,RETAINING.

The Nobo Widescreen Felt Notice Board will get your ideas noticed! The widescreen format and contemporary frame provide an expansive felt surface to pin and display your notices. The InvisaMount™ system makes installation easy and fixings are neatly concealed behind the notice board.

Size: 40”. Surface: Felt. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-702-5931, 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
190531-1
NSN: 5325-01-702-5931
FSC: 5325 — Fastening Devices
CAGE: 71791 — CURTISS-WRIGHT CONTROLS, INC. DBA CURTISS WRIGHT DIV ACTUATION DIVISION (USA)
SPECIFICATIONS
end_item_identificationF-22 AIRCRAFT
part_name_assigned_by_controlling_agencyRING,RETAINING
NSN5325-01-702-5931
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 190531-1 · Nobo ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
TECHNICAL CHARACTERISTICS
PART NAME ASSIGNED BY CONTROLLING AGENCYRING,RETAINING
END ITEM IDENTIFICATIONF-22 AIRCRAFT
OTHER ITEMS IN FSC 5325 — Fastening Devices
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5325-00-000-1884 5325-00-000-9988 5325-00-001-1567 5325-00-001-2043 5325-00-001-3842 5325-00-001-3858 5325-00-001-3871 5325-00-001-4317
SUBSTITUTES & CROSS-REFERENCES 1
187708-3Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 190531-1?
190531-1 is a RING,RETAINING manufactured by Nobo.
What parts can replace 190531-1?
There is 1 known substitute for 190531-1: 187708-3. Substitute compatibility should be verified for your specific system.
What is the NSN for 190531-1?
190531-1 is cataloged in the U.S. Government catalog under NSN 5325-01-702-5931. This indicates validated use in U.S. government and defense supply chains.
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✓ 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.