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FSC 5310 × NUT,SELF-LOCKING,PLATE

NUT,SELF-LOCKING,PLATE

5310-00-621-5973 FSC 5310

NSN 5310-00-621-5973 (also written 5310006215973; NIIN 00-621-5973) is a nut, self-locking, plate in Federal Supply Class 5310, Nuts and Washers. 7 manufacturer part numbers from 5 suppliers are on record. It was last purchased in Oct 2026.

Open for bid

No open solicitations on record for this NSN right now.

Search open RFQs on DIBBS →

Can you win it?

This item is coded as suitable for competitive acquisition (AMC 1).

Acquisition method (AMC)
1
Suffix (AMSC)
C
Competition
Coded for competition

AMC 1: suitable for competitive acquisition, second or later time. AMSC C: needs engineering source approval; other sources must qualify first. The codes describe the item's status on record, not any one solicitation. What the codes mean

What it is — can you make it?

Dimensions, the FLIS specification requirements, and the manufacturer part numbers already qualified against this NSN.

Dimensioned drawing

Generated from the federal catalog's dimensional data for this NSN — reference only, not a manufacturing drawing.

UNITS: INCHES FACE VIEW ⌀0.19-32 2B THREAD 2× ⌀0.098 0.686–0.69 C-C 0.985 LG 0.396 W FRONT VIEW 0.54–0.56 NUT H 5310-00-621-5973 ALL DIMENSIONS IN INCHES · REFERENCE ONLY, NOT FOR MANUFACTURE NUT,SELF-LOCKING,PLATE · LOCKING INSERT STEEL CORROSION RESISTI… · THREAD 0.19-32 2B

Specifications

From the federal catalog (DLA FLIS / PUB LOG) — what your part has to meet. Cited specification documents can be looked up in ASSIST Quick Search ↗, DoD's public spec repository — copy the document number in.

Requirement Value
NUT LENGTH ACVN INCHES NOMINAL 0.985
NUT HEIGHT ADEA INCHES MINIMUM 0.540 AND INCHES MAXIMUM 0.560
THREAD QUANTITY PER INCH CMLP 32
CENTER TO CENTER DISTANCE BETWEEN MOUNTING HOLES ALONG LENGTH ADFY INCHES MINIMUM 0.686 AND INCHES MAXIMUM 0.690
MATERIAL MATT LOCKING INSERT STEEL CORROSION RESISTING
MATERIAL MATT OVERALL EXCEPT INSERT ALUMINUM ALLOY 6061
MATERIAL DOCUMENT AND CLASSIFICATION MDCL LOCKING INSERT ASSN STD SINGLE MATERIAL RESPONSE A-S 7245
MATERIAL DOCUMENT AND CLASSIFICATION MDCL OVERALL EXCEPT INSERT MIL SPEC SINGLE MATERIAL RESPONSE -IL-A-12545
SURFACE TREATMENT SFTT OVERALL EXCEPT INSERT CHROMATE
NOMINAL THREAD SIZE CQJX INCHES 0.190
LOCKING FEATURE AAUM PREVAILING TORQUE WITH METALLIC INSERT
MOUNTING HOLE DIAMETER ABTB INCHES NOMINAL 0.098
THREAD SERIES BZRR UNF
DISTANCE FROM APERTURE CENTER TO MOUNTING HOLE CENTER ADFW INCHES NOMINAL 0.344
THREAD CLASS AAJD 2B
THREAD DIRECTION AAJF RIGHT-HAND
MOUNTING HOLE ARRANGEMENT STYLE ADFU —
PLATE THICKNESS ADEB INCHES NOMINAL 0.060
PLATE WIDTH ADEC INCHES NOMINAL 0.396
NUT MOUNTING PROVISION ADFP STRAIGHT HOLES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION STDC OVERALL EXCEPT INSERT MIL SPEC SINGLE TREATMENT RESPONSE -IL-C-5541
NUT STYLE ACTA —

Manufacturer part numbers

Commercial part numbers cross-referenced to this NSN in the federal catalog — the parts that have been accepted as satisfying this stock number, and who makes them.

Part number CAGE Manufacturer
10121562 A486G NIMIKKEISTOKESKUS NCB FINLAND
5300014-55 60119 MONADNOCK COMPANY, THE DBA LISI AEROSPACE
ST4M134-3-55 76301 THE BOEING COMPANY DIV DEFENSE
WSI-4-55 04169 ATLAS CORP WESTERN SKY INDUSTRIES DIV
WSI-4-55 83014 HARTWELL CORPORATION
WSI-4-55NH 83014 HARTWELL CORPORATION
WSI4-55D 04169 ATLAS CORP WESTERN SKY INDUSTRIES DIV

What it pays — so you can quote

The government's own price and demand record for this NSN — what past awards cleared at, so you know where to land your quote.

Latest unit price
$18.89
Purchases
1
Total spend
$4,534
Oct 5, 2026
Last purchased
2 · 2.0/yr
Purchase records
$9,067
Total demand
$18.89
Latest unit price

Compare with other items

Purchase history

1 purchase on record
Awarded Qty Unit price Total Supplier Agency Source
Oct 5, 2026 240 $18.89 $4,534 APOLLO AEROSPACE COMPONENTS LLC (00360) Unknown Source ↗

Related contract actions

Contract action totals, not unit prices — obligation amounts from USAspending for related awards, shown for context only. These do not appear on the price chart above.

Action date Award # Recipient Agency Obligation
Oct 5, 2026 SPE4A627P1040 ↗ APOLLO AEROSPACE COMPONENTS LLC — $4,534

Demand history

Every solicitation we've indexed for this NSN, open and closed — 1 on record. Closed RFQs (expired, cancelled, or awarded) stay here as a record of past demand; they never get removed.

Who wins this item

Does one supplier win this every time, and are the winners on the listed-source list? One dot per award.

  • Award in the last 2 years
  • Older award
APOLLO AEROSPACE COMPONENTS LLC
last award Oct 2026
Not listed
ATLAS CORP WESTERN SKY INDUSTRIES DIV
no award yet
Listed source
HARTWELL CORPORATION
no award yet
Listed source
MONADNOCK COMPANY, THE DBA LISI AEROSPACE
no award yet
Listed source
NIMIKKEISTOKESKUS NCB FINLAND
no award yet
Listed source
THE BOEING COMPANY DIV DEFENSE
no award yet
Listed source

APOLLO AEROSPACE COMPONENTS LLC won the only award on record. APOLLO AEROSPACE COMPONENTS LLC won without being a listed source.

Solicitation Issued Closes / closed Qty Status
SPE4A6-26-T-33CL Sep 18, 2026 Sep 25, 2026 240 Expired View at DIBBS →

Open RFQs on DIBBS → DIBBS award history ↗

About this data

  • Unit prices: DLA DIBBS award records — every row links to its government record.
  • AMSC: latest observed value from DIBBS solicitation history as of Oct 10, 2026.
  • Contract action totals: USAspending, context only.
  • Data last refreshed: 2026-10-08.
  • Full methodology →
Cite this page
Citation

NSN Explorer. "NUT,SELF-LOCKING,PLATE." nsnexplorer.com, https://nsnexplorer.com/nsn/5310-00-621-5973/. Data as of October 19, 2026.

Link

https://nsnexplorer.com/nsn/5310-00-621-5973/