Acquisition method (AMC)
1
FSC 4710 × TUBE ASSEMBLY,METAL
TUBE ASSEMBLY,METAL
4710-01-363-3689 FSC 4710
NSN 4710-01-363-3689 (also written 4710013633689; NIIN 01-363-3689) is a tube assembly, metal in Federal Supply Class 4710, Pipe, Tube and Rigid Tubing. 8 manufacturer part numbers from 8 suppliers are on record. It was last purchased in Oct 2026.
Open for bid
No open solicitations on record for this NSN right now.
Can you win it?
This item is coded as suitable for competitive acquisition (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.
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 |
|---|---|
| WALL THICKNESS AAGT | INCHES NOMINAL 0.022 |
| MATING END QUANTITY AFQW | 2 |
| END ITEM IDENTIFICATION AGAV | T.O.2J-TF33-4 F.83 I.62 B-52H AIRCRAFT |
| END CONNECTION STYLE AJFX | — |
| DESIGN FORM ARJD | PREBENT |
| TUBE OUTSIDE DIAMETER BBYQ | INCHES NOMINAL 0.250 |
| CRITICALITY CODE JUSTIFICATION CRTL | SUPP |
| SPECIAL FEATURES FEAT | 4730-00-203-4745 FERRULE,4730-00-142-2579 NUT & 4730-00-555-0410 TUBE-COUPLING///USED ON:TF33-P-3 & TF33-PW-103 ENGINES ONLY |
| MATERIAL MATT | TUBING STEEL COMP 321 |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | TUBING ASSN STD SINGLE MATERIAL RESPONSE A-S 5576 |
| SUPPLEMENTARY FEATURES SUPP | DUE TO CRITICAL FEATURES, TOLERANCES, FIT RESTRICTIONS, MATERIAL PROPERTIES AND MANUFACTURING PROCESS. FAILURE COULD RESULT IN LOSS OR SUBSTANTIAL DAMAGE TO WEAPON SYSTEM, DEATH OR SERIOUS INJURY |
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 |
|---|---|---|
| 443513 | 05813 | KREISLER INDUSTRIAL CORPORATION |
| 443513 | 05819 | E.A. PATTEN CO LLC |
| 443513 | 21890 | SMITHS TUBULAR SYSTEMS-LACONIA, INC. DIV LEWIS & SAUNDERS |
| 443513 | 33830 | AERO TUBE TECHNOLOGIES, LLC DBA TUBE BENDS |
| 443513 | 3BLQ5 | TOMCO MACHINING, INC. |
| 443513 | 4MJR3 | PARTS LIFE INC |
| 443513 | 52661 | RTX CORPORATION DIV PRATT & WHITNEY |
| 443513 | 77445 | RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY |
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
—
Purchases
0
Total spend
—
Oct 26, 2026
Last purchased
1 · 1.0/yr
Purchase records
$16,903
Total demand
$16,903
Latest award total
Purchase history
No priced purchases on record for this NSN yet.
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 26, 2026 | SPE4A222D0002/SPE4AX23F7268 ↗ | TOMCO MACHINING, INC. | — | $16,903 |
Demand history
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
TOMCO MACHINING, INC.
last award Oct 2026
AERO TUBE TECHNOLOGIES, LLC DBA TUBE BENDS
no award yet
no awards on record
Listed source E.A. PATTEN CO LLC
no award yet
no awards on record
Listed source KREISLER INDUSTRIAL CORPORATION
no award yet
no awards on record
Listed source PARTS LIFE INC
no award yet
no awards on record
Listed source RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY
no award yet
no awards on record
Listed source RTX CORPORATION DIV PRATT & WHITNEY
no award yet
no awards on record
Listed source SMITHS TUBULAR SYSTEMS-LACONIA, INC. DIV LEWIS & SAUNDERS
no award yet
no awards on record
Listed source TOMCO MACHINING, INC. won the only award on record.
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 27, 2026.
- Contract action totals: USAspending, context only.
- Data last refreshed: 2026-10-27.
- Full methodology →
Cite this page
Citation
NSN Explorer. "TUBE ASSEMBLY,METAL." nsnexplorer.com, https://nsnexplorer.com/nsn/4710-01-363-3689/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/4710-01-363-3689/