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NSN 5310-00-063-7597Government record, cited

Nut, Plain, Castellated, Hexagon5310-00-063-7597

NSN 5310-00-063-7597 · NIIN 000637597 · Part number X2778
Weil Pump Co Inc · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 64392
Government record, cited
NSN 5310-00-063-7597 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-063-7597. Manufacturer of record part number: X2778.
Also searched as  5310-00-063-7597 · 5310000637597 · NIIN 000637597 · 00-063-7597 · FSC 5310 Nuts and Washers · CAGE 64392 · X2778
Nearby stock numbers  ·
Features
  • Nut,plain,castellated,hexagon — FSC 5310
  • Width Across Flats: 0.750 INCHES NOMINAL IN
  • Thread Series: UNF
  • Thread Direction: RIGHT-HAND
  • Nominal Thread Size: 0.500 INCHES IN
  • Nut Height: 0.322 INCHES NOMINAL IN
  • Nut Style: CASTELLATED, HEXAGON
  • Thread Class: 2B
Identification
  • NSN: 5310-00-063-7597
  • NIIN: 000637597
  • FSC: 5310 — Nuts and Washers
  • FSG: 53 — Hardware and Abrasives
  • Primary part number: X2778
  • Manufacturer: Weil Pump Co Inc
General Description

The Nut,plain,castellated,hexagon, cataloged under National Stock Number 5310-00-063-7597, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Weil Pump Co Inc. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-063-7597
Primary Part NumberX2778
Item NameNut,plain,castellated,hexagon
FSC / FSG5310 / 53 — Nuts and Washers
ManufacturerWeil Pump Co Inc
StatusACTIVE
Width Across Flats0.750 INCHES NOMINAL IN
Thread SeriesUNF
Thread DirectionRIGHT-HAND
Nominal Thread Size0.500 INCHES IN
Nut Height0.322 INCHES NOMINAL IN
Nut StyleCASTELLATED, HEXAGON
Thread Class2B
Thread Quantity Per Inch20
MaterialSTEEL CORROSION RESISTING OVERALL
Bearing Surface TypeCHAMFERED
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
X2778 PRIMARY Weil Pump Co Inc (USA)
No interchangeability data on file.
Other items in FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040
5310-00-000-0040 · Item name not on file
5310-00-000-0077
NUT,PLAIN,ROUND
5310-00-000-0079
WASHER,FLAT
5310-00-000-0079
WASHER,FLAT
5310-00-000-1146
5310-00-000-1146 · Item name not on file
5310-00-000-3815
5310-00-000-3815 · Item name not on file
5310-00-000-4532
5310-00-000-4532 · Item name not on file
5310-00-000-4540
5310-00-000-4540 · Item name not on file

Frequently Asked Questions

What is NSN 5310-00-063-7597?

NSN 5310-00-063-7597 is a Nut,plain,castellated,hexagon, manufactured by Weil Pump Co Inc, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-00-063-7597?

NSN 5310-00-063-7597 has 1 manufacturer part number on file: X2778 (Weil Pump Co Inc).

What are the specifications of X2778?

Key specifications for X2778: Width Across Flats: 0.750 INCHES NOMINAL IN; Thread Series: UNF; Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.500 INCHES IN. 10 specifications are documented in the U.S. Government catalog.

Is NSN 5310-00-063-7597 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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