Home · NSN 00-825-2102

NSN 00-825-2102 — Nut,Tube Coupling

NIIN 00-825-2102 · unit of issue EA · AAC Z (insurance item) · source of supply SMS

NSN 00-825-2102 is the national stock number for a nut,tube coupling. It cross-references to 4 manufacturer part numbers from 2 CAGE codes, including Sae International, Military Standards Promulgated By Military Departments Under Authority Of Defense Standardization Manual 4120 3-M; the primary is MS21921-2C. The unit of issue is EA and the FLIS list price is $8.89.

No government purchase of this stock number is on our record yet. No seller has confirmed stock of it here in the last 30 days; watching the number is free and the first listing triggers an alert.

part numbers from 2 CAGEs

open solicitations, all agencies

government buys in 24 months

sellers with confirmed stock

Know someone who should see this?

Cross-references

Part numbers filed against this stock number, with the manufacturer (CAGE) and the FLIS reference codes.

Part number	CAGE	Manufacturer	Reference	Variation
MS21921-2J	0U583	Sae International	3 · Design control (vendor)	2 · Fully interchangeable
SAE-AS18280	0U583	Sae International	3 · Design control (vendor)	1 · Not fully interchangeable
MS21921-2J	96906	Military Standards Promulgated By Military Departments Under Authority Of Defense Standardization Manual 4120 3-M	5 · Secondary reference	9 · Reference only
MS21921-2K	96906	Military Standards Promulgated By Military Departments Under Authority Of Defense Standardization Manual 4120 3-M	5 · Secondary reference	1 · Not fully interchangeable
MS21921-2C	96906	Military Standards Promulgated By Military Departments Under Authority Of Defense Standardization Manual 4120 3-M	C	1 · Not fully interchangeable

Government demand

Nothing open right now. Watch this NSN and we will email you when it is solicited.

What the government paid

No government purchase on record for this NSN.

Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices.

Sellers with confirmed stock

No seller has confirmed stock on this NSN in the last 60 days. Watch it and we will email you when one does, or request a quote on MS21921-2C.

Listings appear here only while the seller has confirmed them within 60 days. Sellers: list this part free.

DLA management data

FLIS unit price: $8.89
Unit of issue: EA
Acquisition advice: Z — Insurance item
Source of supply: SMS
Effective: Oct 1, 2026

Item characteristics

Thread Class: 3B
Thread Direction: RIGHT-HAND
Fabrication Method: MACHINED
Nut Height: INCHES MINIMUM 0.520 AND INCHES MAXIMUM 0.530
Width Across Flats: INCHES NOMINAL 0.375
Length To Shoulder: INCHES MINIMUM 0.400 AND INCHES MAXIMUM 0.425
Smallest Inside Diameter: INCHES NOMINAL 0.171
Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF)
Thread Quantity Per Inch: 24
Nominal Thread Size: INCHES 0.312
Nominal Tube Outside Diameter: INCHES 0.125
Seat Angle: DEGREES NOMINAL 45.00
Material: OVERALL STEEL COMP 304 OR STEEL COMP 316
Material Document And Classification: OVERALL FED STD SINGLE MATERIAL RESPONSE 66,AISI TO SAE 304 OR 316
Surface Treatment: OVERALL PASSIVATE
Surface Treatment Document And Classification: OVERALL FED SPEC SINGLE TREATMENT RESPONSE QQ--35,TY 1
Specification/Standard Data: GOVERNMENT STANDARD 96906--S21921

Related stock numbers

Other NSNs filed under the same part numbers.

00-004-6542 · Elbow,Tube
00-009-8259 · Union,Tube
00-012-2310 · Nipple,Boss
00-027-5762 · Tee,Tube To Boss
00-033-4981 · Adapter,Straight,Tube To Boss
00-034-1411 · Nut,Tube Coupling
00-050-6850 · Tee,Tube To Boss
00-051-1479 · Tee,Tube To Boss

About this page

An NSN is 13 digits: the 4-digit Federal Supply Class and the 9-digit NIIN. Cross-references come from the federal logistics record; demand from DLA DIBBS, SAM.gov and FPDS; ADs from the Federal Register. Refreshed nightly. Market Pulse shows the whole market.